What’s More Important: Shaft Weight or Shaft Flex?
What effect does shaft weight have on your golf shots? With the help of Nippon, Coach Matt Lockey and I put it to the test in this new video.
Opinion & Analysis
The 2 primary challenges golf equipment companies face

As the editor-in-chief of this website and an observer of the GolfWRX forums and other online golf equipment discourse for over a decade, I’m pretty well attuned to the grunts and grumbles of a significant portion of the golf equipment purchasing spectrum. And before you accuse me of lording above all in some digital ivory tower, I’d like to offer that I worked at golf courses (public and private) for years prior to picking up my pen, so I’m well-versed in the non-degenerate golf equipment consumers out there. I touched (green)grass (retail)!
Complaints about the ills of and related to the OEMs usually follow some version of: Product cycles are too short for real innovation, tour equipment isn’t the same as retail (which is largely not true, by the way), too much is invested in marketing and not enough in R&D, top staffer X hasn’t even put the new driver in play, so it’s obviously not superior to the previous generation, prices are too high, and on and on.
Without digging into the merits of any of these claims, which I believe are mostly red herrings, I’d like to bring into view of our rangefinder what I believe to be the two primary difficulties golf equipment companies face.
One: As Terry Koehler, back when he was the CEO of Ben Hogan, told me at the time of the Ft Worth irons launch, if you can’t regularly hit the golf ball in a coin-sized area in the middle of the face, there’s not a ton that iron technology can do for you. Now, this is less true now with respect to irons than when he said it, and is less and less true by degrees as the clubs get larger (utilities, fairways, hybrids, drivers), but there remains a great deal of golf equipment truth in that statement. Think about it — which is to say, in TL;DR fashion, get lessons from a qualified instructor who will teach you about the fundamentals of repeatable impact and how the golf swing works, not just offer band-aid fixes. If you can’t repeatably deliver the golf club to the golf ball in something resembling the manner it was designed for, how can you expect to be getting the most out of the club — put another way, the maximum value from your investment?
Similarly, game improvement equipment can only improve your game if you game it. In other words, get fit for the clubs you ought to be playing rather than filling the bag with the ones you wish you could hit or used to be able to hit. Of course, don’t do this if you don’t care about performance and just want to hit a forged blade while playing off an 18 handicap. That’s absolutely fine. There were plenty of members in clubs back in the day playing Hogan Apex or Mizuno MP-32 irons who had no business doing so from a ballstriking standpoint, but they enjoyed their look, feel, and complementary qualities to their Gatsby hats and cashmere sweaters. Do what brings you a measure of joy in this maddening game.
Now, the second issue. This is not a plea for non-conforming equipment; rather, it is a statement of fact. USGA/R&A limits on every facet of golf equipment are detrimental to golf equipment manufacturers. Sure, you know this, but do you think about it as it applies to almost every element of equipment? A 500cc driver would be inherently more forgiving than a 460cc, as one with a COR measurement in excess of 0.83. 50-inch shafts. Box grooves. And on and on.
Would fewer regulations be objectively bad for the game? Would this erode its soul? Fortunately, that’s beside the point of this exercise, which is merely to point out the facts. The fact, in this case, is that equipment restrictions and regulations are the slaughterbench of an abundance of innovation in the golf equipment space. Is this for the best? Well, now I’ve asked the question twice and might as well give a partial response, I guess my answer to that would be, “It depends on what type of golf you’re playing and who you’re playing it with.”
For my part, I don’t mind embarrassing myself with vintage blades and persimmons chasing after the quasi-spiritual elevation of a well-struck shot, but that’s just me. Plenty of folks don’t give a damn if their grooves are conforming. Plenty of folks think the folks in Liberty Corner ought to add a prison to the museum for such offences. And those are just a few of the considerations for the amateur game — which doesn’t get inside the gallery ropes of the pro game…
Different strokes in the game of golf, in my humble opinion.
Anyway, I believe equipment company engineers are genuinely trying to build better equipment year over year. The marketing departments are trying to find ways to make this equipment appeal to the broadest segment of the golf market possible. All of this against (1) the backdrop of — at least for now — firm product cycles. And golfers who, with their ~15 average handicap (men), for the most part, are not striping the golf ball like Tiger in his prime and seem to have less and less time year over year to practice and improve. (2) Regulations that massively restrict what they’re able to do…
That’s the landscape as I see it and the real headwinds for golf equipment companies. No doubt, there’s more I haven’t considered, but I think the previous is a better — and better faith — point of departure when formulating any serious commentary on the golf equipment world than some of the more cynical and conspiratorial takes I hear.
Agree? Disagree? Think I’m worthy of an Adam Hadwin-esque security guard tackle? Let me know in the comments.
@golfoncbs The infamous Adam Hadwin tackle ? #golf #fyp #canada #pgatour #adamhadwin ? Ghibli-style nostalgic waltz – MaSssuguMusic
Podcasts
Fore Love of Golf: Introducing a new club concept

Episode #16 brings us Cliff McKinney. Cliff is the founder of Old Charlie Golf Club, a new club, and concept, to be built in the Florida panhandle. The model is quite interesting and aims to make great, private golf more affordable. We hope you enjoy the show!
Opinion & Analysis
On Scottie Scheffler wondering ‘What’s the point of winning?’

Last week, I came across a reel from BBC Sport on Instagram featuring Scottie Scheffler speaking to the media ahead of The Open at Royal Portrush. In it, he shared that he often wonders what the point is of wanting to win tournaments so badly — especially when he knows, deep down, that it doesn’t lead to a truly fulfilling life.
View this post on Instagram
“Is it great to be able to win tournaments and to accomplish the things I have in the game of golf? Yeah, it brings tears to my eyes just to think about it because I’ve literally worked my entire life to be good at this sport,” Scheffler said. “To have that kind of sense of accomplishment, I think, is a pretty cool feeling. To get to live out your dreams is very special, but at the end of the day, I’m not out here to inspire the next generation of golfers. I’m not out here to inspire someone to be the best player in the world, because what’s the point?”
Ironically — or perhaps perfectly — he went on to win the claret jug.
That question — what’s the point of winning? — cuts straight to the heart of the human journey.
As someone who’s spent over two decades in the trenches of professional golf, and in deep study of the mental, emotional, and spiritual dimensions of the game, I see Scottie’s inner conflict as a sign of soul evolution in motion.
I came to golf late. I wasn’t a junior standout or college All-American. At 27, I left a steady corporate job to see if I could be on the PGA Tour starting as a 14-handicap, average-length hitter. Over the years, my journey has been defined less by trophies and more by the relentless effort to navigate the deeply inequitable and gated system of professional golf — an effort that ultimately turned inward and helped me evolve as both a golfer and a person.
One perspective that helped me make sense of this inner dissonance around competition and our culture’s tendency to overvalue winning is the idea of soul evolution.
The University of Virginia’s Division of Perceptual Studies has done extensive research on reincarnation, and Netflix’s Surviving Death (Episode 6) explores the topic, too. Whether you take it literally or metaphorically, the idea that we’re on a long arc of growth — from beginner to sage elder — offers a profound perspective.
If you accept the premise literally, then terms like “young soul” and “old soul” start to hold meaning. However, even if we set the word “soul” aside, it’s easy to see that different levels of life experience produce different worldviews.
Newer souls — or people in earlier stages of their development — may be curious and kind but still lack discernment or depth. There is a naivety, and they don’t yet question as deeply, tending to see things in black and white, partly because certainty feels safer than confronting the unknown.
As we gain more experience, we begin to experiment. We test limits. We chase extreme external goals — sometimes at the expense of health, relationships, or inner peace — still operating from hunger, ambition, and the fragility of the ego.
It’s a necessary stage, but often a turbulent and unfulfilling one.
David Duval fell off the map after reaching World No. 1. Bubba Watson had his own “Is this it?” moment with his caddie, Ted Scott, after winning the Masters.
In Aaron Rodgers: Enigma, reflecting on his 2011 Super Bowl win, Rodgers said:
“Now I’ve accomplished the only thing that I really, really wanted to do in my life. Now what? I was like, ‘Did I aim at the wrong thing? Did I spend too much time thinking about stuff that ultimately doesn’t give you true happiness?’”
Jim Carrey once said, “I think everybody should get rich and famous and do everything they ever dreamed of so they can see that it’s not the answer.”
Eventually, though, something shifts.
We begin to see in shades of gray. Winning, dominating, accumulating—these pursuits lose their shine. The rewards feel more fleeting. Living in a constant state of fight-or-flight makes us feel alive, yes, but not happy and joyful.
Compassion begins to replace ambition. Love, presence, and gratitude become more fulfilling than status, profits, or trophies. We crave balance over burnout. Collaboration over competition. Meaning over metrics.
Interestingly, if we zoom out, we can apply this same model to nations and cultures. Countries, like people, have a collective “soul stage” made up of the individuals within them.
Take the United States, for example. I’d place it as a mid-level soul: highly competitive and deeply driven, but still learning emotional maturity. Still uncomfortable with nuance. Still believing that more is always better. Despite its global wins, the U.S. currently ranks just 23rd in happiness (as of 2025). You might liken it to a gifted teenager—bold, eager, and ambitious, but angsty and still figuring out how to live well and in balance. As much as a parent wants to protect their child, sometimes the child has to make their own mistakes to truly grow.
So when Scottie Scheffler wonders what the point of winning is, I don’t see someone losing strength.
I see someone evolving.
He’s beginning to look beyond the leaderboard. Beyond metrics of success that carry a lower vibration. And yet, in a poetic twist, Scheffler did go on to win The Open. But that only reinforces the point: even at the pinnacle, the question remains. And if more of us in the golf and sports world — and in U.S. culture at large — started asking similar questions, we might discover that the more meaningful trophy isn’t about accumulating or beating others at all costs.
It’s about awakening and evolving to something more than winning could ever promise.
KK
Jul 30, 2016 at 7:26 am
It’s all about feel, with lighter shafts generally spinning a bit more with a bit more speed. The real problem is many golfers choose ego and show over darts-into-the-green control and scoring.
Nooner
Jul 27, 2016 at 3:25 am
I think the length and girth of the shaft are more important in satisfaction for all involved
Variable Step Patterns
Jul 26, 2016 at 7:51 pm
You’re talking about two shafts with variable step patterns as well. So that should be considered. Mark obviously loads the shaft different than coach. And as Mark stated he adjusted to the lighter shafts second time around. You shouldn’t have to adjust to a shaft. Your natural tendency will come out eventually. I’m willing to bet if they went with the lighter shaft they would develop different swings to compensate to get his timing right all the time to play the irons. But then he will have to compensate the rest of the bag. You should swing what ever allows you to achieve the proper shot window and dispersion and swing the same through out the bag.
Like people have stated people need to be fit. what works for one may not work for another. Plus not having an industry standard for flex doesn’t help. DJ plays KBS Tour 120 in his wedges….that’s light for a wedge shaft…..but look at his stats…
FlexVariesWithWeight
Jul 26, 2016 at 5:43 pm
It’s disappointing to see Mark Crossfield completely miss the fact that flex does in fact vary according to shaft weight. Even Nippon will tell you that a 950GH stiff is not equal to the 1150GH stiff in absolute flex. Looking at EI profiles, the Zelos 7 is nothing like the Modus3 shafts that Mark compared. Mark continually “emphasized” that all the shafts were stiff flex, but he just doesn’t seem to get it. So unfortunately there were a lot more variables in play here than just shaft weight.
Nooner
Jul 27, 2016 at 3:27 am
And what about MOI? He’s only swinging one middle club. I would love to see how this same test works with the PW and 3 irons
Mmmmm
Jul 26, 2016 at 3:17 pm
What
Was
The
Swingweight
in
Each
Club
Tested
MB
Jul 26, 2016 at 8:03 am
I agree with Steve. Also I think it has to do with feel. A full swing wedge made by a pro, is different to a full swing 3i – 9i. The shaft is shorter, not generating the same speed and a greater value is put into dispersion and zooming in on target. In order to create the same feel as with X100 in their other irons they choose a shaft with the same weight but slightly softer in overall flex, adding a fraction more spinn. Feel being factor No. 1 in their priority.
JG
Jul 25, 2016 at 4:30 pm
Great analysis! My question goes back to flex… Many tour pros use a different shaft in their irons versus their wedges with TTDG S400 being the popular wedge shaft choice. Is this just a feel thing? How would an amateur know whether they would benefit from different flex in their wedges?
steve
Jul 26, 2016 at 7:35 am
From what I understand they want a softer tip in wedges to create more spin
jo
Jul 26, 2016 at 7:42 am
Test it. Like Mark said, go to a golf shop and hit as many different weights and flex’s of shaft as you can. And instead of looking at the results, only go by ur feel to narrow down ur top three shafts. Then look at the numbers or results. I did this with my irons. Did it with the Mizuno shaft optimizer fitting system, even tho I don’t play Mizuno irons. I fully went in thinking I was going to be getting KBS tour shaft because of the hype. But after testing my top three where in order Project X 6.5, DG X100 and then KBS tour. I didn’t not like the feel of the KBS shafts at all. And the Project X shafts distance numbers were slightly longer then the DG X100 by a yrd or 2. But the feel of the DG X100s for me was way above the others for my swing which is compact, short and aggressive. All and all no one person can tell u ur shaft weight and flex, you need to go out and feel the perfect shaft for you.
Alex
Jul 26, 2016 at 3:01 pm
The s400 is heavier than the x100 so it gives the feeling of fractionally more control with the s400 wedge shafts. Thats the main reason why the s400 is more sought after is the weight. But there are a few outliers i.e. Rory McIlroy who uses PX 7.0 in his irons and PX 6.5 in his wedges. The 7.0 weighs more but is also stiffer, so he choose the lighter but not quite as stiff shaft in his wedges. To answer your question, most off the rack wedges come with DG s200 aka “Wedge Flex” These shafts are plenty heavy enough for I would say >90% of golfers. For most people I would say start with the s200 and work you way down to a lighter shaft.