2019 MOST WANTED GAME IMPROVEMENT IRON
Irons

2019 MOST WANTED GAME IMPROVEMENT IRON

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2019 MOST WANTED GAME IMPROVEMENT IRON
Mizuno JPX 919 Hot Metal
Tommy Armour Atomic
Mizuno JPX 919 Hot Metal
Most Wanted Game Improvement Iron
Mizuno JPX 919 Hot Metal
  • 2019 Most Wanted Game Improvement Iron
  • Top 10 for Proximity To Hole & Shot Area across all three clubs tested
  • Exceptionally consistent ball speed, carry and total distance
  • Unanimous positive feedback from testers on looks, feel and alignment
  • Not among the best for ball speed and distance

110.13 mph

158.89 yards

401 yds²

Best Distance
Tommy Armour Atomic
  • 2019 Best Game Improvement Iron for Distance
  • Ranked 1st in Ball Speed, Carry and Total across all three irons tested
  • Top 5 in Strokes Gained across all three clubs
  • Ranked outside the top 10 for all accuracy and consistency metrics

112.65 mph

166.32 yards

623 yds²

Best Forgiveness
Mizuno JPX 919 Hot Metal
  • 2019 Most Forgiving Game Improvement Iron
  • Top 10 in Distance To Hole & Shot Area across all three clubs tested
  • Exceptionally consistent ball speed, carry and total distance
  • Unanimous positive feedback from testers on looks, feel and alignment
  • Not among the best for ball speed and distance

110.13 mph

158.89 yards

401 yds²

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180

Hours
Researched

16

Products
Considered

10,315

Shots
Hit

40.1m

Readers

OUR JOB IS YOUR GAME

Are you playing the right irons for your game?

Unfortunately, for many, the answer is “no.” The right irons for every golfer combine precision, distance, and forgiveness – all while maintaining a reasonably pleasing appearance at address.

So, how do you choose? If you don’t hit the center of the clubface nearly every time, chances are you need some help from your clubs. That’s where game improvement irons come in. Game Improvement clubs are designed to offer more forgiveness across the clubface, and even give you a little bit of the extra distance you’ve always wanted (or used to have).

This year we put 17 of the top game-improvement models to the test. With over 10,000 shots hit, this is the most comprehensive and independent iron test in the world.

If you’re in the market for irons in 2019, this test is for you.

Most Wanted: Mizuno JPX 919 Hot Metal

Iron Buying Considerations

Performance should be your primary concern when buying new irons, but there are some additional considerations you may want to think about before you make your purchasing decision.

SET MAKE-UP

You’ll likely hit iron shots on the majority of holes you play, so it’s essential to pay attention to set make-up. As with most things in the golf equipment industry, there is no universal standard for set composition. That’s not a bad thing as it allows for almost endless combinations and the ability to mix and match between models when appropriate. Keep in mind that some sets don’t offer 4-irons while others may not include a gap wedge. It’s important is that you make sure your iron set can fill every spot in the bag you need it to fill and that you’re not forced to buy additional clubs you don’t want or need.

SHAFT SELECTION

The number of shaft options offered for irons is growing. It can be challenging to navigate the different models, weights, and flexes to find the shaft that’s right for you. The answer to the best performing shaft question stretches well beyond graphite vs. steel.

We always recommend taking the time to go through a professional fitting, but if you don’t have the resources, ask your local golf shop if they have a Mizuno Shaft Optimizer. This advanced technology utilizes gyroscopes and strain gauges to measure things like club speed, tempo, and how much the shaft is flexing at impact. It will then recommend a list of shafts at the right flex, length, for your swing. It even makes a lie angle recommendation.

DISTANCE VS. FORGIVENESS VS. WORKABILITY

In a perfect world, we would get all three in one iron that everyone could play. Unfortunately, distance, forgiveness, and workability are like gauges – when you add to one, you take from another. Evaluate your game and decide what you need to maximize performance. If you’re looking for max distance, the Tommy Armour Atomic irons are a definite favorite from our test, though it’s important to remember that stronger lofts are an easy way to generate extra yards. If you’re looking for forgiveness – the Mizuno JPX 919 Hot Metal is a good pick.

While game improvement irons as a whole are not designed to be the most workable (based on the placement of mass), there are still some irons from the 2019 Most Wanted Game Improvement Iron Test that offer shorter blade lengths, thinner soles, and less perimeter weighting. If you’re in the market for a workable, yet still forgiving head, consider the Srixon Z585, a 2018 Most Wanted Winner.

COST

A set of irons is likely going to be the most expensive investment for your golf bag. Even within the game improvement category, prices can exceed $1000. While the top performing irons in our test are in that range, the Cobra F9 SpeedBack and TaylorMade M5 irons can be considered a relative bargain. Notwithstanding any exotic shaft upgrades, you’re looking at $800 and $850 respectively for a 7-club set.

PRODUCT SPOTLIGHT - LONG & STRAIGHT

PRODUCT SPOTLIGHT - LONG & STRAIGHT

A strong performer at all three distances tested, the Cobra F9 SpeedBack produced outstanding accuracy in the short irons and competitive distance in the mid and long irons. Cobra's latest Game Improvement offering features SpeedBack Technology, which utilizes a thinner, raised portion of the sole to minimize turf contact while adding forgiveness with additional perimeter weighting. The design pushes the center-of-gravity back and down, promoting a high ball flight and maximum forgiveness.

If you're a golfer that is looking for added distance and forgiveness, make sure to include the Cobra F9 SpeedBack on your list when getting fitted.

FIELD NOTES

During each test, we look for trends that provide us with insight into where the market as a whole is moving, as well as what noteworthy changes manufacturers have made to improve year-over-year performance. We also solicit feedback from our testers. We want to understand what they liked, what they didn’t like, and why. We want to reemphasize that, while we do collect and share noteworthy portions of this subjective feedback, it does not factor in our rankings.

Trends and Tweaks

  • As equipment manufacturers like TaylorMade and PXG are pushing the technology envelope inside the head, many companies are continuing to refine sole designs to improve turf interaction. Enhanced sole designs are nothing new to the golf industry, but they are an often overlooked piece. Srixon has offered Tour V.T. Sole for years on their Z Series irons. Cobra has added a raised sole on the new KING F9 and F9 ONE irons to reduce the amount of turf-contact. Both Srixon and Cobra have designed the bottom of the irons to improve turf interaction for golfers of all swing styles. These angled soles might give you some extra help where you need it on that tricky downhill lie.
  • A continuing trend in the Game Improvement Iron category is the use of multi-material heads. Game Improvement Irons are packed with technology to help golfers maintain ball speed and add forgiveness on those off-center shots. To achieve these design characteristics, heads are often cast, while the welded faces are often forged. The use of hollow body and filled cavity designs like PXG’s 0811 GEN2 XF with its Thermoplastic Elastomer is also on the rise.
  • A commonality in this category is the strengthening of lofts with the single goal to increase distance. Manufacturers like Tommy Armour and Tour Edge (Exotics) have created clubs with lofts as much as 3° and 4° stronger than the competitive set. While added distance can be enticing, be aware of the implications it can have on trajectory and accuracy – remember that precision is much more important than distance in your irons.
PRODUCT SPOTLIGHT - XTREME FORGIVENESS

PRODUCT SPOTLIGHT - XTREME FORGIVENESS

The XF in PXG's 0311 XF irons stands for (e)Xtreme Forgiveness - and everything in our results suggests the iron offers exactly that. With a longer blade length and wider sole, the 0311XF is designed to help you on those off-center strikes. Ranking in the top 5 for consistency of ball speed, carry yards, and total yards for the mid and long irons, the evidence suggests the 0311XF holds up Xtremely well when not hit on the center of the clubface.

If the 0311 XF falls in your price range, there's little reason not to take them into the fitting bay when presented with the opportunity.

Notes from the Testing Pool

The following section details subjective feedback from our pool of 20 testers. While it is meant to highlight some of the feedback obtained during the test, it’s important to note that none of it is directly related to the actual performance of the club, and as such, does not factor in the overall rankings.

  • Among the top rated irons for feel in this year’s game improvement test were the Srixon Z585 (2018 Winner); and a newcomer – the Tommy Armour Atomic. The Srixons feature a fully forged head, while the TA Atomic Irons utilize a unique brazing process to join the face of the club to the body. Utilizing a titanium cup face, the Atomic Irons delivered superb feel and was well-received among the test group.
  • Testers in the slower swing speed category tended to favor clubs that helped the ball get up in the air. Clubs like the Cleveland Launcher CBX, PING G410, and our Most Wanted Winner – the Mizuno JPX 919 Hot Metal – were among the top-rated for slower swing speed golfers.
  • The Mizuno JPX 919 Hot Metal was a favorite among testers for looks, feel and alignment. Testers cited the Hot Metal for a soft yet powerful feel at impact. While the JPX 919 Hot Metal irons didn’t produce the highest ball speed, they performed exceptionally well at all three test distances with respect to accuracy and forgiveness.
  • The Titleist AP1 was the highest rated club in all three subjective categories; looks, feel, and alignment. Like the Hot Metal, the AP1 is a cast design, so it’s noteworthy that there was seldom negative feedback on the feel of the club.
  • On the opposite end, the subjectively (looks/feel) worst ranked club was the Exotics EXS. Testers said the irons felt clunky and the footprint was too big.

2019 Most Wanted Game Improvement Iron Data

EXPERT TIP - SHAFT MATERIAL

The shaft has a measurable effect on iron performance. Though the average shaft weight has come down in recent years (especially in game improvement designs), steel shafts typically the heavier than graphite offerings. For many, that means more effort to swing and greater fatigue over the course of a round. For many golfers, a heavier (and often stiffer relative to flex) offering can result in lower launch and spin with more consistency delivering the club. While that's great for some, it isn't what every golfer needs.

Graphite shafts are often lighter, though its important to note that design enhancements have improved the stability of graphite offerings making them more viable than ever for higher swing speed players. The lighter weight, which often brings with it more speed, generally produces higher launch and more spin, which can benefit slower swing speed players. The inherent vibration reduction properties of graphite also create a softer feel at impact.

As always, it's essential to get properly fitted to ensure the most consistent and accurate results.

How We Test

Our Mission is to help you find the best game improvement irons for your game.

We are 100% independent and unbiased, and we always put the #ConsumerFirst.

About Our Testers

Our pool of testers consists of 20 golfers with handicaps ranging from plus to the mid-teens. As a group, they span a broad range of swing characteristics (head speed, attack angle, etc.).

Over the course of several sessions, each golfer is required to hit 10-12 "good" shots with each club. Club order is randomized on a per tester basis.

Limiting Variables and Gathering Data Reliably

To minimize variables, all testers hit Bridgestone B330 RX Golf balls.

Both club and head data are captured using Foresight GCQuad launch monitors.

Crunching the Numbers

Before determining our rankings, we identify and remove outliers using a proprietary detection methodology.

To arrive at our final results, we calculate the averages of key metrics (ball speed, distance, dispersion, etc.), while also considering the standard deviation and the statistical reliability of those values.

PRODUCT SPECIFICATIONS

Most Wanted Game Improvement Iron Specs

ClubPW LoftPW Length7 Iron Loft7 Iron Length5 Iron Loft5 Iron Length
PXG 0311XF

Check Price
43.25°35.5"29.75°37"22.5°38"
Titleist AP1

Check Price
43.25°35.625"29.5°37"21.75°38"
Tommy Armour Atomic

Check Price
40°35.35"26.5°37"21.5°38.25"
Bridgestone Tour B HF2

Check Price
43.5°35.635"30.25°37.125"22.75°38.25"
Wilson Staff C300

Check Price
43.75°35.625"31.5°37.125"22.75°38.25"
Exotics EXS

Check Price
41.5°36"26.5°37.125"20.75°38.25"
Cobra KING F9

Check Price
43.75°36"29.25°37.125"22.75°38.5"
Cobra KING F9 ONE

Check Price
44°37.125"30°37.125"21.75°37.125"
PING G410

Check Price
45°35.5"29.75°37"23°38.25"
Mizuno JPX 919 Hot Metal

Check Price
44.5°35.5"30.25°37"22.25°38.25"
Cleveland Launcher CBX

Check Price
44.25°35.75"29.75°37"21.75°38.5"
TaylorMade M5

Check Price
44.75°35.75"30.25°37.125"22.75°38.375"
TaylorMade M6

Check Price
43.25°35.75"29.25°37.125"22.25°38.5"
Callaway Rogue

Check Price
43.75°35.5"29.5°36.875"21.75°38.25"
Sub70 639

Check Price
43.75°35.85"29.5°37.125"22.75°38.25"
Srixon Z585

Check Price
43.75°35.5"30.5°37"23.5°38.125"

* denotes measured value vs. manufacturer’s stated spec.

FAQ

Buying New Irons

Q: How often should I buy new irons?

A: While on rare occasions there are quantifiable year-over-year breakthroughs, typically it takes 3-5 years for manufacturers to make any significant performance gains. With the USGA further tightening restrictions on manufacturers, it’s possible, even likely, that it will take longer still moving forward. Our recommendation is to buy new irons only when they appreciably outperform what is already in your bag. Of course, if you want new irons because you want new irons, that’s fine too.

Q: How do I determine the right category of irons for me?

A: The four main categories of irons: players, players distance, game improvement, and super game improvement can easily be differentiated by your skill level (handicap), as well as what you need in your game. First, be realistic about your skill level, if your handicap is above 10 and ball-striking is not a legitimate strength, consider game improvement or super game improvement. For more skilled players who hit the ball more consistently, a set of players irons or players distance irons may benefit your game the most.

Q: Does the shaft matter?

A: Absolutely. While changes to spin and launch and spin differences are rarely massive, shaft changes frequently lead to improved accuracy, tighter dispersion, and greater overall consistency.

Q: What should I look for when testing irons?

A: While golfers have been conditioned to consider distance to the exclusion of nearly everything else, we recommended looking at the little numbers and looking for small circles. When comparing metrics like distance and ball speed, be sure to look at your standard deviations (the small numbers usually found under the big ones on the data screen). Smaller numbers mean better consistency, which will usually mean more than an extra yard or two on the golf course. Similarly, look for tighter dispersion ellipses (small circles). We can’t understate the importance of consistency with irons.

Bucking the Loft-Jacking Trend?

Every year, golf companies promise more yards, and sometimes they deliver. But at what cost? One of the easiest (and frequently employed) methods to increase distance is to decrease loft; essentially turning yesterday's 6-iron into today's 7-iron. While we all understand that accuracy and consistency are the most essential elements of competent iron play, almost inexplicably, distance is still what moves the needle in the iron category.

Players irons typically buck the trend. While it's perhaps not entirely accurate to say manufacturers use traditional lofts, irons within the category are among the weakest lofted (relative to the number stamped on the sole) on the market. While distance is always important to some degree, golfers of elite skill benefit from higher spinning shots that offer the stopping power necessary to attack pins on the small shelves. That being said, consistency always matter.  You won't likely hit players irons as far as a game-improvement iron; but if you have the skill to flight your irons to whatever degree the shot calls for, the category is likely right for you.

Most Wanted

Q: How are the irons in the test fit to each golfer?

A: We use a fitting process that we call fit from stock. Irons are fitted to each tester using the stock, no up-charge options from each manufacturer. We test one short iron, one mid-iron, and one long iron from each set. While there are no irons in our testing that feature adjustability, we fit to flex for each tester in the pool. Occasionally manufacturers will send multiple sets with different stock shafts that we can utilize to improve launch conditions.

Q: How is the Most Wanted Game Improvement Iron Determined

A: To determine the Most Wanted Game Improvement Iron, we collect performance metrics with Foresight GCQuad Launch Monitors. To determine our overall rankings, we utilize a proprietary methodology that considers the statistical reliability of a Strokes Gained metric across the entire pool of testers.

Q: How is the “Longest” Iron determined?

A: To determine the Longest Game Improvement Iron, we consider the average total yards across the test pool along with the statistical reliability of that data.

Q: How is the “Most Forgiving” Iron determined?

A: To determine the Most Forgiving Game Improvement Iron, we focus on a narrower set of metrics that includes: Shot Area (dispersion), Radial Distance,  Accuracy, and the average standard deviation for ball speed and carry yards.

Q: How much does subjective feedback like looks, sound, and feel factor into your rankings?

A: ZERO. Our rankings are based purely on launch monitor data and quantifiable performance metrics.

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      Mike

      4 years ago

      So much for most wanted, they lasted about 3 months in my bag. Mizuno completely screwed up all the lie angles little pain in the ass when it came to them fixing them. And I gained no distance on the course from the clubs that I was previously playing. Mention Mizuno’s to me now and I’ll run the other way.

      Reply

      Joe

      4 years ago

      Typically how many rounds does it t are wear out a set of irons etc…..I play 230 rounds a year ( I live in Florida). I usually go through wedges once a year. I play ping and I know they hold up better than some others

      Thanks
      Joe

      Reply

      Steve

      5 years ago

      I recently purchased the Mizuno JPX 919 HM Pro’s, Awesome, looks great, Good Distance, and good distance on off center hits. Love the way they look at address.
      Then the other shoe Dropped, I remembered why I went to other Brand, Yup rust on the face after 2 rounds of golf, now have 3 rounds under my belt and 3 rusty clubs. Yes I wipe them down, they are dry when put up. The odd part is its face only, none on leading edge where it goes into the divot, None on the bottom of club where it scuffs the ground, So great Clubs but dont believe the More durable glare resistant coating BS they just rust on the faces.

      Reply

      David Keppler

      5 years ago

      Hi, need new irons. 5 index. only play 3 x month, 55 years old. torn between P790 vs 919HM, they seem to have similar overall forgiveness (400-415) even though they r very diff in size? that confuses me, is that true? so are those 2 very similar in overall foregivness or r the 919HM more forgiving since they r bigger and in game improvement catagory? thank u 4 any help deciding, really torn….

      Reply

      David Keppler

      5 years ago

      Hi, need new irons due to needing graphite

      Reply

      JonD

      5 years ago

      Great point. I had crossed the TA Atomics off my list because of consistancy. But now that they are giving them away at $499, I am rethinking that.

      I wonder what the TAs would look like consistancy wise if you compared a TA 8 iron with a Mizuno 7 iron. Distance would be about the same and I expect consistancy would be really close as well.

      Reply

      Sandlover9000

      5 years ago

      Why werent the Mizuno 919 Hot Metals rated above the Srixon z585s as last years 2018 Most Wanted Game Improvment Iron as well?

      Reply

      Brandon

      5 years ago

      Something important left out on those Tommy Armour Atomics, they have a FORGED TITANIUM FACE!

      Reply

      Kevin

      5 years ago

      Has there been any consideration to matching tester clubs based on loft and the numbered iron. I know it’s what the manufacturer sends, but comparing these 7 irons with crazy differences in loft is hard. You guys even mentioned on your podcast that these GI irons can be hard to hit for many players.

      Instead of asking for a 7 iron, can we ask for a 33 degree club (or whatever is closest)? That might give us more apples to apples comparisons.

      Reply

      Josh

      5 years ago

      Recently purchased the a combo set of Srixon Z 585/785’s. I understand why MGS has categorized the Z585 in the GI iron category (as it’s the most forgiving offering in their lineup) but IMO it’s definitely the most compact /sleek looking head in this testing. I see it more in the player’s distance iron category, and the z785 and new z forged blade as both players irons.

      Reply

      James

      5 years ago

      “To determine our overall rankings, we utilize a proprietary methodology that considers the statistical reliability of a Strokes Gained metric across the entire pool of testers.”

      Where did the strokes gained metric on the chart go? It was on there yesterday.

      Reply

      Josh

      5 years ago

      Can’t seem to get the rankings in the data chart from best to worst, just in alphabetical order. I believe you had clubs ranked top to bottom in previous years?

      As has been mentioned, I was surprised so see Srixon got very little accords after outperforming the Mizuno (and pretty much all the other clubs) in mid and long iron data (good distance/dispersion) and was very close to the top in short irons. How does the strokes gained method account for this?

      Reply

      James

      5 years ago

      Yep, I saw the strokes gained metric on the chart yesterday. Not there today.

      Reply

      Sveinn Orri

      5 years ago

      The tommy armour PW is 1 degree weaker than my 8 iron. The 7 iron is 0.5 degrees stronger than my 5 iron. The 5 iron is 2.5 degrees stronger than my 4 iron. Is anybody going to call this BS and say that length is irrelevant from iron testing. Forgiveness is definitely important, and my irons are definitely less forgiving, and I would very much like a really forgiving iron with traditional lofts, but seems to be a thing of the past. The ping G410 is still 3 degrees stronger than my set, so then I need a Gap gap wedge to fit between PW and GW. When will this end? When is the gap wedge going to be like a 9 iron and we need 5 wedges to climb up to a lob wedge? This needs to stop, people. We need a revolution! Just put degrees of loft on the irons and then we can finally start comparing apples to apples.

      Reply

      NH Golfer

      5 years ago

      Yeah well Ben Hogan Golf Company tried the loft on iron thing and failed miserably. I repeat miserably. The consumers couldn’t handle it. All the average guy cares about is how far he hits his 7 iron. If people don’t like strong lofted clubs then they shouldn’t buy them. That would get the attention of the manufacturers.

      Reply

      Peter Jackson

      5 years ago

      Another excellent report and one that we all can trust! For me, the test shows that all of the irons which have been tested are all very good and in reality, there’s not much to choose between them. So it comes down to somewhat of a personal taste regarding appearance and feel. Also, after playing with numerous different brands, I now realize that unless you are a low single figure handicap, you best choice is game improvement irons.
      I am a 13HC and for me after trying, PING, Mizuno and recently Callaway Apex CF16 irons recently,my favourite is the Srixon Z565. These are beautiful to the eye,forgiving and as long as any GI iron. The massive plus for me is the feel and sound which for me is the best I have ever used.
      The Callaway Apex irons were a total disappointment for me. After a few rounds, I couldn’t get any consistency and the feel and sound was ”hard” They are actually small heel to toe. ”Bought and sold within 2 weeks!” Probably, a little too demanding for a mi HC?

      Reply

      P.J.

      5 years ago

      Tommy Armour jacks up the loft and it’s called the longest iron. Seems like deceptive, at best…
      You almost need a statistic that shows yardage per degree of launch angle to get a real comparison. So, I did that – for the 5-iron. Ironically enough, the Tommy Armour was still very long, coming in at 9.03yards per degree of loft, bested only by the Exotics EXS at 9.27yards per degree – which most testers disliked.
      The Srixon Z585 came in the lowest at 8.03yards per degree, followed by the Ping G410 at 8.09yards per degree.
      The stats on the PW were interesting too. Again, the Tommy Amour Atomic’s came first place with 3.17yards per degree, followed by Exotics EXS with 3.03yards.
      Coming in last was the Mizuno JPX919’s and Ping G410’s, both at 2.63yards per yards.
      Don’t know that my data analysis is on point, but I definitely found it interesting!

      Reply

      P.J.

      5 years ago

      Clarifying remark – I did the math for Club Loft Angle, not the launch angle.

      Reply

      Chris

      5 years ago

      One thing I hate about face flex is the hot shot that goes over the back on a middle pin. Is that what you calculated in the consistency of distance or just off center hits that went short?

      Reply

      Gerald Teigrob

      5 years ago

      Having moved up from my Adams Golf A7s and Redline irons, I am pleased with how workable the Cobra Bio Cell irons are for me..And having tried out the Baffler XL mid to long irons, I would say they would be up there in terms of helping me get my handicap down. So as far as I am concerned, I would not want Mizuno irons in my golf bag, i prefer to be in the fairway. So if I were to upgrade I would go with the variable length Cobra F9 irons. I am happy playing Cobra irons and having worked with a coach who was sold on Mizuno, while I almost lost my swing completely, I will be looking forward to playing Cobra irons for years to come!

      Reply

      Srixon Employee

      5 years ago

      I am confused….

      When comparing the Srixon 585 to the Mizuno, Srixon had higher ball speed, more spin, higher apex, longer distance, less of center, and closer to hole.

      I can’t wait for Tony Covey to respond to this with some absurd rationale as to how that is not better!

      Reply

      Tony Covey

      5 years ago

      It’s incredibly disappointing and unnerving that as someone who claims to work for a golf company you would need me to explain that there’s not much to be learned by looking at averages across a pool of 20 disparate testers and how the performance of the highest swing speed/longest golfers skews the averages.

      Our process has been vetted by several of the biggest brands in golf, and we don’t tweak much of anything without consulting with both R&D guys and the stats guys that helped us develop our outlier engine as well as the foundation for our current ranking methodology. NOTHING we do here, club tests, ball tests, any test, happens without direct consultation with experts on the other side of the industry. I can assure you that we know what we’re doing.

      Quick Aside: We name a LONGEST IRON because golfers still fixate on that. I don’t like it, but it’s a bit of a compromise between what we think is right and what our readers want to see. Is the Atomic longer BECAUSE it’s jacked. Hell yes, it is. That’s not misleading, that just physics.

      For our overall winner we look at Strokes Gained, and more to the point, what matters is that an iron produces a statistically reliable difference across the 3 irons tested from each set. The raw averages are becoming a liability because guys take them as the absolute and only truth. The reality is that it doesn’t work like that and without deeper analysis, they don’t mean much of anything. As I tell my team quite often, there are a lot of ways to average 250 yards, and some of them are inherently better than others.

      With that out of the way, let me explain how we arrive at our overall rankings.

      First, we calculate a strokes gained value for each shot. The process has some proprietary bits in it, but the key piece is that we factor in how far each tester hits any given iron. Basically, we have to account for the fact that the jacked lofts on an Atomic will invariably produce longer shots than something like a Hot Metal which is appreciably less jacked. We don’t want to favor longer just because it’s longer.

      Next, we look at how the strokes gained values for a given iron compare to all of the irons in the test on an individual tester basis. That individual basis part is key. Let’s say Bob hits an ‘average’ 7-iron 130 and Steve hits an ‘average’ 7-iron 160. It would be foolish to try and make a direct comparison between Bob and Steve, and more foolish still to directly compare Bob to Steve and the other 18 golfers in this test. That’s effectively what happens when one looks exclusively at the raw averages. One would hope an employee of a golf company would already understand this.

      So what we do is look at how (using Strokes Gained as our metric) Bob’s performance with the Hot Metal compared to Bob’s performance with the Atomic and all of the other irons Bob tested. Again, I need to reiterate that we’re just talking about Bob here. How did club A compare to clubs B-Z for Bob? The club with the highest strokes gained value is the one we say the best for Bob.

      Next, we run the other clubs in the test through a test of statistical reliability. Any club for which there is not a statistically reliable difference from Bob’s best (using Strokes Gained as our metric) we place in what we call the “top group” alongside that previously determined BEST.

      Quick example – we determine that Bob got his best middle iron results with JPX 919 Hot Metal. However, it turns out that for the Z585, Rogue, Atomic, and 0311XF we can find no statistically reliable Strokes Gained differences from that JPX 919 Hot Metal, and so we can’t reasonably say that any one of them isn’t every bit as good for Bob. Consequently, Bob’s top group contains 5 clubs.

      We do this for every club with every tester. What we end up with are some testers for which there are 1 or 2 Best Clubs (a small reliably different top group), while others have comparatively large top groups (+/-10 clubs for which we can find no reliable difference – basically they hit most everything more or less the same).

      This serves as the basis for what we call the Top Group Percentage. As our name suggests, it’s the percentage at which any given club lands in the statistically reliable top group across the entire testing pool. For example, for middle irons, the top group range in this test was between 40% and 80%. The median was 63% and the mode was 55%.

      So yeah, we’re not big believers in the idea that it’s not the least bit absurd to do a hell of a lot more than look at the raw averages produced by 20-35 different golfers say “That one”.

      The process is the same for short, middle and long irons.

      Another Aside: What’s interesting is that there are occasions where a middle iron might perform really well for an individual tester, while the long iron or wedge might not. Since we buy our irons in sets, you probably won’t find many guys out there mixing Srixon long irons with Mizuno mid irons and Callaway short irons.

      Once we’ve calculated top group percentages across the entire test pool, we need to aggregate long, middle, and short irons. What’s different this year is we’ve leveled things out a bit. Generally, short iron top group percentages tend to be higher than long iron top group percentages (guys hit short irons similarly well (few reliable differences), but there’s a bigger difference with long irons). To avoid having short irons disproportionately contribute to the overall rankings, we normalize the Top Group Percentages such that long, middle, and short irons contribute the same amount to the overall rankings. We’ve discussed weighting for one club or another, but ultimately we think having an iron set that offers consistent performance from one end of the set to the other is probably what most golfers want (or at least they should).

      The iron with the highest aggregated Top Group Percentage is our Most Wanted. What we’re effectively saying is that, based on the results of our test, we believe it’s the club (or set of clubs) that has the highest probability of being among the best for any given golfer.

      It’s not intuitive, it’s not easy to explain, but we know it’s a far superior approach to just looking at averages.

      If you find the fact that we don’t put much stock in averages without consideration for statistical reliability absurd, so be it, but you might want to talk to your R&D team first. I can’t imagine their opinion would differ much from the others we’ve spoken with.

      Reply

      JasonA

      5 years ago

      Fantastic methodology. Please do stick with it.

      May be hard to explain sure, but still worthwhile. @TONY the info in your comment is great. While the info in the article is just too vague. Please keep full methodology “in reach” each time do another super datacratic article.

      I did appreciate the % testers club is in the top pool that used to be included in data.

      At a minimum you’ll be able to respond by a link rather than repeating this ad nauseam

      Gerald Teigrob

      4 years ago

      Tony, the one caveat I would add is this is a test based on neutral results, but the results that might show up with each amateur golfer allows for a difference in results. It also takes into play how much offset and how much forgiveness you need. I tend to lean towards game improvement irons over SGI irons because I find the Game Improvement irons are more similar to the oversize irons I played once they came out. I can play hybrids okay,, but I am a traditionalist and I enjoy playing my long irons up to a 4 iron (now that they come in stronger lofts than my 22 degree 3 iron. No one golfer requires the same specs and measurements in every club. Surprisingly, I can play regulation length because of my leg length so I don’t necessarily need to make adjustments. I still like an SGI 4 and 5 iron in my golf bag early in the season for confidence, but I know I can make the adjustments needed to play my game improvement 4 and 5 irons without issues.

      Stevegp

      5 years ago

      Thank you for this timely review. I am in the market for a new set of irons in this category. My main question mirrored Jason’s in comparing the Srixon’s versus the Mizuno’s performance. Both are really good irons.

      Reply

      Tim

      5 years ago

      Soooo, the AP1 was the top rated (best performing overall) but the 919 was the ‘most wanted’? …and the AP1 doesn’t even get an honorable mention??? That goes to the F9. I have the AP1 and went with them over the 919 based on looks and performance…for me anyway.

      Reply

      Wally

      4 years ago

      Tim, I have worked in the golf department of a major sporting goods chain for the last 4 years, fitting , repairing, and selling clubs.. Titleist hasnt shaken the stigma that they are for better players only, even with the great strides theyve made with forgiveness, and different shaft options. In my opinion, the company doesnt seem that concerned about it either. Its difficult for us to even get the customer to try Titleist irons.

      Reply

      golfjam

      5 years ago

      I can vouch for Mizzy HMP. Played blades for years but age is catching up and decided to try an easier club. They’re ridiculous easy, long and forgiving. It’s like cheating to be honest. Thin or fat all shots will still fly 95% of the distance. The only way to miss is to shank or skull it. Also, the number of stock shafts is second to none, no other manufacturer offer so many options. And of top of that, they’re cheaper than their competition.

      Reply

      JasonA

      5 years ago

      Glad to hear it’s still the same. I was fitted for Mizuno JPX 800 Pro’s way back (when had proper lofts ;-) and got a positive sticker shock when fitter said “and by the way that is the cheapest option out of the shortlist”

      Reply

      Matt S

      5 years ago

      Was fit into some 919 hot metals a couple weeks ago. Makes me feel even better about my purchase. Great club for fitting loft adjustments and no extra charge for most shaft upgrades.

      Reply

      Matt

      5 years ago

      It’s no wonder that the Tommy Armour 7I whad the best distance….it has 6I loft when compared to the other irons tested. It’s between a 4I and 5I in my 2006 Wilson Staff Fi5’s and goes about the same distance as my 6I. It’s not really an upgrade if my 13 year old clubs perform the same or better than current technology. Would it be possible to compare the “Most Wanted” from previous years to determine whether this generation of irons is actually and upgrade over previous years?

      Reply

      Richard

      5 years ago

      TOMMY ARMOUR ATOMIC best distance !! da.. at 26 degre loft , it has the strongest loft of the group. it has the loft of a traditional 5 iron !!

      Reply

      Jeff

      5 years ago

      Distance literally means nothing. What used to be a 7 iron is now called a 9 iron in some sets.
      Can you hit the irons consistently, accurately and manage distance. Can you shape shots a bit? Who cares what number is stamped on the sole!

      Reply

      Gerald Teigrob

      5 years ago

      Jeff, it’s been like that since I switched from hard to consistently hit blades to oversized (now game improvement) irons. I was able to crank my 2 iron 270 or so off the tee at that time, and airmailed greens with my 4 iron at 210 yards. Lofts having become stronger but not knowing what loft means from manufacturer to manufacturer means we have no standards. The 4 irons I play are now 20-21 degrees meaning that we still essentially have a 3 iron to pitching wedge in our bag, just numbered up from 4 iron to gap wedge. The thing that matters most is how well todays amateurs can adjust to playing these strengthened lofts. I am enjoying having a 4 iron in my bag and knowing i can hit it 200 yards like I used to hit my 3 iron when first playing oversized irons gives me the confidence I need when standing at the tee or in the fairway. I can consider playing the same way as pros do off the tee when playing for position in the fairway.. So yes, lofts have strengthened, but it depends on how lofts are measured by each company. Also you can have stiff steel in one name brand and regular steel in another name brand. Until we see everyone on the same wavelength when it comes to measuring standards, we will continue to see mixed reviews and what works well for one amateur won’t work for another.

      Reply

      Sixcat

      5 years ago

      Some strong lofts across the board but a 40* pitching wedge?!?!?

      Reply

      jason

      5 years ago

      great stuff as always. i noticed the srixon outperformed the mizuno for mid and long irons for overall distance, distance from center and distance to hole. what parameter did you weigh more heavily allowing the mizuno to edge out the srixon as “most wanted”?

      Reply

      McaseyM

      5 years ago

      Thank you for all the work MGS! Mizuno in top, Tommy armour showing very well, as did Cobra and Srixon. Hopefully Ben Hogan gets their new PTX Pro or Edge iron into this next go around.

      Reply

      Joseph P Kaiser

      5 years ago

      You state “The best rated overall for the 2019 Game Improvement Iron Test was Titleist AP1. Testers on average rated this club highest in all three categories of looks, feel and alignment.” Can you elaborate on why it wasn’t then designated “The Most Wanted”?

      Reply

      Timbo

      5 years ago

      Thanks for asking this question, I was confused by this too.

      Reply

      Chris

      5 years ago

      It was the best in subjective feedback; meaning testers like the looks and feel but it did not perform the best

      Reply

      Tom54

      5 years ago

      Cool. I’ve been gaming the 919 Hot Metal Pros for over a month now. Also the first time I’ve gone to graphite shafts.

      Reply

      Eye4golf

      5 years ago

      Purchased a set of Cobra f9 one length about 2-3 months ago and have never looked back. As a senior golfer who started out playing with blades over 50 years ago and pretty much played forged and upgraded to cavity back when they became available. First time cobra buyer and all I can say is you CAN teach a old dog new tricks with single length irons. Fellow golfers if you want a more consistent iron play SL are the answer, ask yourself if it’s easier to hit a short iron or long iron? F9’s really have a hot face as I am using 1 iron less than before and I am not getting any younger or stronger at 67. Try them and your hooked.

      Reply

      David Modeer

      5 years ago

      I was fitted for irons about 2 months ago. Tried almost all of the irons in your test sample. At the end, no other iron came close in total distance to the Ping G410. They were 8 yards longer than any other brand. It has proved out on the course where from 6 iron through gap wedge I hit one less club than prior set. My prior set was ping i210 and before that Taylor made m2. My handicap index is 5.3 and my average drive is roughly between 235-250. It’s hard to estimate as I am in Texas and we nearly always have wind. I am 73 years of age.

      Reply

      Bruce

      5 years ago

      How can the Srixon 585 fall so far from 1st place last year? I think they are all good and its a matter of personal preference. Get properly fitted and they all will work.

      Reply

      Jensen

      5 years ago

      I, like the majority of players don’t and won’t change irons out but for every 5-10 years. Have you ever considered doing tracking of late model clubs? It could be an interesting look at how and when club makers hit breakthroughs and its a good time switch to the new stuff.

      Reply

      Tony

      5 years ago

      You might want to check out Rick Shiels Golf Youtube channel. Granted its one guy doing the reviews but it still is interesting to see the difference in stats. He did testing of 5 year’s worth of Taylormade Drivers to compare their stats, for instance.

      Reply

      ryebread

      5 years ago

      This is a good suggestion and I’d to it by saying to watch ALL of those series of videos. He had one for each of the big 5 OEMs.

      The OEMS are trying to sell clubs. That means there’s going to be change if for no other reason than change’s sake. I do think that they probably want to try and improve, and likely think they’re making the product better (who doesn’t want to think they’re doing a good job at work?), but not all change is for the better. Some years they might move forward. Some years they might move back.

      For me the bottom line of this test is that this category of iron performs similar if the specs are similar. Jack the lofts strong and lengthen the shafts, and a 7 is now a 6 and is going to reflect those launch/spin and dispersion properties. But if the specs are the same, pick the head you like the look of the best and get the right shaft. For me that’d be the Bridgestone (pretty and seemingly a slightly larger head).

      Tony: One thing that’d be really interesting in an iron test is a “gap chart” across the 3 iron types. While I agree with you that consistency is king in an iron set, the second most important thing is equal gapping. With the loft strengthening, it’s arguably even more important.

      While one can do it for a club by flipping back and forth between the charts, it would be much easier to consume if this were a trackable metric. “Way back in MGS history” you used to show the testers and dots, and for some reason I seem to remember that you could this. It could be the years have skewed the memory.

      Chris Nickel

      5 years ago

      Unless you happen to swing exactly like the person authoring the review, it lacks any real benefit. The validity of MGS testing is not only in the protocols but in the statistically significant quantity of shots measured.

      Basing any purchase based on the experience of a single golfer is perhaps marginally better than buying a lottery ticket.

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