Crossfield: Challenging common beliefs about blade and game-improvement irons
I did this experiment because I am currently using blades after using game-improvement irons for a long time. And after a few rounds with the blades, I have found no real drop in performance.
Moment of inertia (MOI), a measure of an iron’s forgiveness, is as a selling tool for new irons, but I am not sure how much real improvement it is offering the golf community. My video goes a long way to show that maybe the way we’re thinking about fitting irons to our game is quite wrong.
Both the irons I tested in the video had stiff shafts. The Mizuno MP-5 (blades irons) had True Temper’s Dynamic Gold S300, while the JPX-EZ (game-improvement irons) had True Temper’s XP 95 S300 shafts. Both irons were tested with stock lofts and lengths.
Opinion & Analysis
5 Things We Learned: Thursday at the PGA Championship
Aronimink is not a storied club, but when Donald Ross himself proclaimed it to be as good as he can design and build, one had to take notice. Jay Sigel was the pre-eminent male amateur golfer from the mid-1970s to the mid-1990s. He might have called any number of Philadelphia clubs home, but he chose Aronimink. It served him well. Gary Player won a PGA Championship here in 1962, and was followed by the 1993 winner … nobody. Aronimink gave that event away to Inverness, for reasons of which it is certainly not proud. So be it. We had to wait sixty-four years for the PGA to return to Newtown Square, but here we are. Aronimink has been neo-restored by Gil Hanse and team, to return Ross features with an eye toward defense against the dark arts, errrr, high-tech equipment.
Day one saw Rory McIlroy and Bryson DeChambeau dig big holes, to the tune of plus-four and plus-six, respectively. Since the first-round lead will be minus-three at worst, many shots will need to be made up for the power couple to reach contention. By nightfall, seven golfers held the day-one lead at three-under par 67. Shots and sticks caught our attention, and we are proud to present Five Things We Learned on Tech Thursday at the 2026 PGA Championship. Thanks to InsideTourGolfer, Today’s Golfer, and GolfWRX for initial equipment research.
First, meet Min Woo Lee
Min Woo Lee, aka Dr. Chipinski, has once again thrust himself into the conversation of Can he, will he, when will he? Lee has so much talent, wins not nearly as often as we believe that he should, and has no major near-misses (much less titles) on his wiki. The young Aussie is getting older and wiser, but is he able to avoid the scarring that holds the older and wiser back from breaking through? Philadelphia offers another opportunity. Min Woo signed for five birdies and two bogeys on day one, and grabbed a share of the opening-day lead at Aronimink. Winners transcend history and the moment, and Lee will need that sort of ascent to lift the Wannamaker on Sunday.
Second, meet Aldrich Potgeiter
The young South African golfer can rip driver with the best of them. Aronimink tips out at nearly 7400 yards, but beyond the fairway bunkers that ensnare only the mortals, Potgeiter can take his chances with wedge from the rough. On Thursday, he spent plenty of time in the spinach. Like Popeye, he used his muscles to gouge and thrash and dig his way out. Six birdies against three bogeys on the card brought AP in a three deep.
Third, meet Martin Kaymer
Not a major event takes place without a where’s he been throwback moment. We know that Martin Kaymer left the PGA and DP World tours for LIV golf, but the two-time (US Open and PGA) major winner has a lifetime exemption into at least one major event, and he seizes the opportunity each May. Kaymer joined the six-seven brigade with four birdies and a solitary bogey on day one. Kaymer was never a long hitter, and the years are kind to no golfer. The German champion will need to uncork every bottle of guile and strategy in his cabinet to remain in contention. For today, though, he occupies a rung on the ladder of Tour Tech.
Fourth, meet Scottie Scheffler
Let’s see, he’s the defending champion at the PGA, and he found his way back to the top tier with five birdies against two bogeys. To be a favorite and then play up to that stature and expectation is quite difficult. Just ask Rory, Bryson, and some of the other pre-tournament heartthrobs. Scheffler’s game is complete, and to knock him off the OWGR #1 pedestal, one needs to defeat him at the majors. Aronimink is the sort of course that fits Scheffler’s game. Better yet, it unfits the game of many of his challengers. Don’t expect Scheffler to go away anytime soon. Come Sunday, he’ll be around.
Fifth, meet Stephan Jaeger
Clocking in for the unheralded players shift are Ryo Hisatsune and Stephan Jaeger. Hisatsune logged seven birdies on day one, but gave most of them back with four bogeys. Still, he’s tied at the top for a time. Jaeger pitched five birdies against two bogeys, including a run of three consecutive, from holes four through six. Odds are that one of the two will hang around through 36 holes. Odds also suggest that both will be gone by Saturday evening. Still, the PGA Championship has historically been the major most likely to be won by an under-known. Both Hisatsune and Jaeger feature on that list, so good luck, lads!
Club Junkie
Club Junkie’s Titleist GTS driver fitting results!
On this episode of the Club Junkie Podcast, I head to the Titleist Performance Institute for a full driver fitting with the new Titleist GTS lineup. We dive into the fitting process, talk about what made the biggest difference in performance, and break down how the different GTS heads and shaft combinations compare on the launch monitor. If you are thinking about a new driver setup for this season, there is a lot to take away from this one.
I also get into Brooks Koepka and the gear setup he brought to the PGA Championship, including the putters that caught my eye during the week. There are some interesting equipment trends showing up at the highest level right now and we break down what stands out.
To wrap things up, I talk about reshafting a few wedges, what I learned during the process, and swapping an adaptor onto a new shaft for another build project in the shop. A gear packed episode from start to finish for anyone who loves golf equipment and club building.
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Club Junkie
Club Junkie WITB, week 16: New Titleist GTS woods!
Excited for this week’s WITB as we get to add the new Titleist GTS woods to the bag! I was fit at Titleist’s TPI facility in Oceanside California a few weeks ago and my new clubs just showed up. I am also adding a cool set of irons that I built last year some wild custom wedges into a new golf bag. Speaking of the bag I have a new Ghost Anyday Black Ops stand bag that I will be using on my Motocaddy Remote M7 electric cart.
Driver: Titleist GTS3 (11 degrees @ 10.25)
Shaft: Fujikura Ventus Red 6s
3-wood: Titleist GT1 3Tour (14.5 degrees)
Shaft: Graphite Design Tour AD CQ-7s
5-wood: Titleist GTS (18 degrees)
Shaft: Fujikura Ventus Red 7s
9-wood: Titleist GT1 (24 degress)
Shaft: Fujikura Ventus Red 7s
Irons: Bettinardi CB24 (5-PW)
Shafts: KBS C-Taper Lite 110 stiff
Wedge: TaylorMade MG5 (50-09 SB)
Shaft: Mitsubishi MMT 125 Stiff
Wedge: TaylorMade MG5 (56-12 SB)
Shaft: Mitsubishi MMT 125 Stiff
Wedge: TaylorMade MG5 (60-08 LB)
Shaft: Mitsubishi MMT 125 Stiff
Putter: Dan Carraher ZT Proto
Ball: Callaway Chrome Tour
Bag: Ghost Anyday Black Ops Stand Bag
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Whats in the Bag3 weeks agoKristoffer Reitan’s winning WITB: 2026 Truist Championship
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Whats in the Bag2 weeks agoAaron Rai’s winning WITB: 2026 PGA Championship
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Tour Photo Galleries3 weeks agoPhotos from the 2026 PGA Championship
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Equipment2 weeks agoGolfWRX Launch Report: 2026 Titleist GTS drivers
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Equipment2 weeks agoPGA Championship Tour Report: Fitzpatrick, Koepka among big-name putter switches for Aronimink
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News2 weeks agoWITB Time Machine: Phil Mickelson’s winning WITB, 2021 PGA Championship
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L^E
Apr 25, 2016 at 4:49 pm
I’m a 10 handicap and play a set of blades and I often hear comments like “wow blades, why make the game harder?” or “you must be really good if you are playing these clubs” (which i’m not really good, I’m just average). Truth of the matter is, a crappy shot is a crappy shot. A GI club isn’t magically going to turn a chunk into a pure shot pin high. It IS true that your off center shots will most likely fly further with a GI club, but not by a significant amount. And for me, blades offer the “feel” when you hit that pure shot to know you hit it pure. Feedback in a club is an important part of improving your game. I’m not advocating that everyone should play blades, it’s a personal preference. But I think we need to realize that blades are not just for scratch golfers.
Bryon
Apr 22, 2016 at 8:38 am
I would like to see a high handicapper do this experiment. Someone in the 20s range go through this with the data so we can see side by side if GI irons are better or not.
I’m curious to see if GI irons truly benefit a higher handicapper or not.
Hawk
Apr 21, 2016 at 9:35 am
As a high handicapper myself I hate GI irons and find them to be a marketing ploy to get more players into golf. One of the biggest reasons people leave the game is because it is so hard to hit the ball. GI irons make it easy, but it doesn’t make you better.
I maintain this view because I see my game progressively improving year after year, while I see my buddy struggling to get better. We both started playing at the same time. he went the GI route, and can’t chip, pitch, and has no accuracy at all under 100 yards. On the other hand I am very accurate and very good and chipping and pitching when you consider we are both handicapped in the 20s. With every iron I am far more accurate and consistent than my buddy. I play MP-60s.
Eric
Apr 18, 2016 at 2:46 pm
Very surprised that there is not a larger gap in distance since the JPX 6 iron is 2 degrees stronger than the MP series. To be fair the MP5 does not behave like most blades and is much larger than any other blade offering from Mizuno. I feel that it is way more forgiving than any other MP I have seen outside of the H series. I agree with the earlier comment, I would like to see this test with an MP15 or even a MP4. Those are the last of the compact head, thin top line Mizunos. If not Mizuno test the Titleist MB or Callaway x-forged. It would be fun too for Mark to hit an 11th shot where he tries to “step on it”.
Justin
Apr 18, 2016 at 12:59 pm
This is interesting and I have 2 different views. Being a scratch+ golfer (as I assume Mark is as well) there is no need for me to hit game improvement irons, as I strike the ball in the center of the face more often than most. However, I performed a similar test with taylormade mb irons vs the new PSI forged. I found the PSI’s traveled about 8 yards further on average (after 20+ shots with each) and had just about the same amount of feedback. The spin rates were also very similar, with the main difference being the ball speed and launch angle. Both clubs had X100 Tour Issue shafts and were identical in every way outside of the head obviously. The 8 iron of the blade I believe is 1 or 2 degrees weaker than the PSI, so it doesn’t shock me that it went a little further, but the big surprise was that it actually launched higher on average than the mb. So I think this discussion need to be separated into 2 categories: 1. Players cavity vs blades for low handicappers and 2. GI vs standard/players cavity for higher handicappers. Players cavity irons are the wave of the future as more pros are moving away from blades. The thing that has changed is the feedback we get from the cavity irons is better than ever, and feedback is one of the only reasons I played blades in the past.
An interesting side study to this would be if there was a way to test players hitting crucial shots in their club championship or other tourney to see how often they can hit the center of the club face under pressure. That brings me to my final thought: confidence. You should hit an iron you feel looks good and sets up well at address. Never choose an iron based on the so called benefits alone. If a thin top line makes you feel better over the ball, you should probably play the mbs over the PSI forged. The few shots that matter greatly during a round (getting out of trouble, forced carry, green with water/sand) are influenced most by how a player feels in the situation. You’ll hit a good shot if you feel you’ve got the right club in your hand. Beyond that, what’s in between your ears is still more important than what’s in your bag.
Matto
Apr 19, 2016 at 5:53 am
Last I heard, Mark’s a 9. I could be wrong.
ParHunter
Apr 21, 2016 at 5:09 pm
You must be joking! Check out his GameGolf profile. That calculates a GG handicap (which tends to be close to your real one) of +0.6. Bis average score is 73.7
Daddy Divots
Apr 18, 2016 at 12:24 pm
I switched from a players iron to a GI (Speedblade) after about a year of having kids. I had no time to practice and my ball striking suffered. When i made the switch my 1 round per week became a lot more enjoyable and the scores came down significantly.
I have been as low as a 5 index (pre-kids) and climbed over 12 once the practice sessions were no longer an option. GI irons helped me quickly get back to a solid single digit.
You can fawn over the blade, it’s beauty or whatever all you want, but the average person or the 12 handicap is going to see improvement with GI irons.
God bless technology!
Hawk
Apr 21, 2016 at 9:24 am
I beg to differ. I play MP-60s and my buddy plays RocketBladez. My shots are far more accurate and far more consistent than he has every been. We both started playing at the same time, and both our handicaps are in the 20s.
there are shots he can’t make and won’t make because he isn’t comfortable with it, or doesn’t know how to do it. For me, there is nothing I can’t hit or do. Call that confidence vs club, but the theory that GI irons will benefit is a total falicy. It is a gimmick to get people to play the game by offering an easier to hit club. Is it easier to hit? Absolutely, but it doesn’t make you a better player. If you want to get better and be a better player, I maintain, even as a high handicapper, stay away from GI irons.
BHS
Apr 22, 2016 at 2:38 pm
I have to disagree with you Hawk…I did the same thing as Daddy Divots…combo blade set(McGregor V-foil yr 2002 when they were good) to the X-Hot pros by Callaway. I had the same thing happen to me since I didn’t play as much, from 6-7 times every month to 3-4 times with 2 months off. My handicap was going up to 9-10 range from 4-5. Most of the issues was not hitting enough greens from 170-210 range. Since I made the change…dropped back down again. One of my playing buddies is about the same handicap as you and he plays they same no mater what clubs are in his hands, his clubs.. to mine to a friends extra set of blades.
I do think that this problem helps someone in the 5-12ish handicap range more then someone in your range.
Honest Question, if you both you and your friend started at the same time and you can hit shots he can’t… and as you said..”On the other hand I am very accurate and very good and chipping and pitching when you consider we are both handicapped in the 20s”
Have you considered that if you used GI clubs you would be in the teens?
Lowell
Apr 18, 2016 at 9:57 am
Nice video and is pretty spot on. A player does not intentionally aim for the toe no matter how high a handicap. A high handicapper is inconsistent in where they hit the golf ball on the face so even if they had a game improvement iron, it would not improve their outcome.
fred
Apr 18, 2016 at 12:13 pm
Seriously?
Tony Wright
Apr 17, 2016 at 5:35 pm
Mark interesting test thank you. Is there any chance you could duplicate the test by hitting the EZ club with the same shaft you use in your MP5 clubs – Dynamic Gold S300? The XP 95 shaft is about 35 grams lighter than the Dynamic Gold shaft, and the XP 95 shaft flex profile throughout the shaft is a lot softer than the Dynamic Gold shaft flex profile. Would that make a difference, who knows unless you do it with the same shaft. All the best.
Square Grooves
Apr 17, 2016 at 2:38 pm
So a scratch golfer finds little difference between a blade and a shovel on Trackman. Shocking. Have a 14 handicapper do the same comparison, and watch the blade numbers go sideways.
jcorbran
Apr 17, 2016 at 3:52 pm
14? average golfer shoots 100, that’s a 28ish. You didn’t hit anything thin or fat, test those clubs while chunking them all, see what works better.
KC
Apr 17, 2016 at 2:04 pm
I recently demo’d the new Titleist 716 irons and the best performer for me was the CB hands down. AP1 were a little bit longer, as you’d expect with the stronger lofts, but those CB’s were going as far as the AP2 and T-MB irons (despite their lofts being a tad stronger) yet felt way more pure. On mis-hits I noticed exactly the same impact to the shot with all the irons, so it really is a no-brainer for me that the CB was what I’d bag from that line. If you can consistently strike the ball then why not play an attractive club like a CB or MB?
golfraven
Apr 20, 2016 at 4:36 pm
I agree here with you. The only clubs I would consider now are the CBs, even if the AP2 might be the better fit. Maybe even a combo of MBS and CBs but I guess this is just being funky.
JustTrying2BAwesome
Apr 17, 2016 at 12:59 pm
I’m surprised a hot faced iron isn’t flying a lot farther than a solid faced blade. Seems to for me in the long irons, but what do I know. Thanks for the review Mark.
Tom Duckworth
Apr 17, 2016 at 12:02 pm
Very nice Mark. For a number of years I believed I should leave my old blades in the basement because no one can hit them but the pros. I never went full on GI irons I would buy the cavity back cut slot type of iron that I just didn’t really like the feel of. After breaking out my old Wilson Staff blades and hitting many buckets side by side with the cavity back irons like you I could not find any real meaningful difference.
I hit my irons well but by no means am I a scratch golfer.
I have to miss hit pretty baddly to really see a difference and a bad strike with any iron is a bad strike.
I do feel like if mfgs. can convince us that all these different irons will make a difference they will sell more irons. It just make sense if you have six different irons to sell that a golfer will find something in your line they like or think will help them. I’m sure there are golfers that walk in the store and just look at GI irons because that’s what they think they can hit and never look at anything else they might enjoy more. Just think if Titleist made one kind of iron and said “This is the perfect iron” even if it was they would never sell as many. I’m not saying everyone should play blades I play Wilson FG Tour V2s because I like their feel and I know how far it will go when I hit it well but they are never HOT. Blades are not as hard to hit as some would have us believe. I must say I’m glad to see you playing the MP-5s I was a little bummed when you were playing the GI irons.
George
Apr 17, 2016 at 3:55 am
I recently went from MacGregor player cavities to MP-59. I tried more game improving irons like XR, XR Pro, but unfortunately I can’t even look at those large heads with the thick top line. Sorry, but look of the head at address is important for me. The MacGregors just spoiled me in that category.
RG
Apr 17, 2016 at 2:44 am
Thank you for being the voice of reason Mark. If you hit it out the middle it doesnt matter what you play and “forgiveness” is mostly a marketing tool. Now Guru tell them all about shaft flex! #the truth is out there
Rich
Apr 16, 2016 at 11:48 pm
Mark, love your work. Anyone who gives me the drive to go back to blades is alright with me. Would like to see this test done with a 15 marker or something like that. Would be keen to see if there was a similar lack of difference. Cheers
Other Paul
Apr 16, 2016 at 11:16 pm
I switched to titlesit 712 mbs. They are amazing. My game rose up to playing them very quickly. Got over the 4i fear as well. Good video Mark. Welcome to WRX.
:-ppp
Apr 16, 2016 at 8:35 pm
What a totally clueless comment from somebody who knows nothing
Eee
Apr 16, 2016 at 7:58 pm
Crossfield says: “We should all just have one ball, one shaft, one head type. And call it a day. Because it’s the Indian and the arrow. All the time. If you know how to strike the ball, you’ll figure it out. I hate all these shaft choices. “
Jordan Speeth
Apr 16, 2016 at 7:32 pm
I’ve experienced the same and, as a result, have gone back to a much more blade-y iron (Srixon Z745). If anything, they make me more aware of the fact that I want to/need to strike the ball with the center of the club face and, as a result, I do. The feel, performance, spin control, etc. though, are much better with the Z745 than the GI club in the range. I do have a Z545 4 iron with a stiff Graphite shaft and I think that club carries the ball significantly further than the steel shafted Z745 that would be part of my normal set. It REALLY takes off like a rocket…the Cavity/slot back Z545, that is. Anyway, I find myself agreeing with Mark and the type of player who would supposedly benefit greatly from a GI club, i.e.. 60+ years old, cancer patient (loss of strength/swing speed), losing eyesight/hand-eye coordination but all those factors considered, I’m still a better player with the blades. I was a Ping guy for two decades too. I sometimes play with a vintage set of Haig Ultra blades too, a REAL blade, and I can say that, though they’re still great, contemporary blades are not your grandfather’s clubs. They ARE easier to hit than 50s thru 70s butterknives.
Roger Daltry
Apr 16, 2016 at 4:03 pm
Play VR Pro blades after Titleist 690.mb’s, best golf of my life after many years of “player cavities.” Connection = feedback = improvement = results. It’s a smarter cycle. Few are aware!