When I entered the golf club fitting business about 15 years ago, there was not a standard rating system for golf shaft stiffness. Nor was there a way to compare golf shafts. This journal gives you a way to compare golf shafts with a uniform stiffness rating evaluation. Understanding the properties of a golf shaft which is your best fit leads to a better game.

Describing golf shaft properties is not a simple task. Shaft company marketing developed terms, “kick point”, “stiffness”, “launch” and “spin” to describe shaft properties. These terms developed into a mythological language for describing golf shafts. Shaft engineers and designers define golf shaft stiffness as a profile, the change of stiffness down the length of the shaft. Many years ago a tour of a shaft company R&D lab enlightened my understanding of golf shaft technology.

That lead to me designing and manufacturing a very accurate shaft stiffness measuring instrument. It is now used by several shaft companies. I have been writing about shaft properties for 10+ years. The term EI profile, is now part of the discussion some shaft companies are having with golfers.

If you want to understand golf shafts you have come to the right place. Here you can learn why some shafts work better for you than others. And more important, how to recognize the properties of shafts that make you a better golfer. Please share your comments about what you experience with the shafts reviewed.

A system which defines the distribution of flex down a golf shaft is how most shaft companies design golf shafts. But the information, for fear of giving that information to their competitors, is not shared with the public. It took a few years to refine my measurement instrument and many, many years to acquire and measure the popular golf shafts. This journal provides you with uniform measurements of thousands of golf shafts. If you are new here, the TECHNOLOGY MENU is a collection of articles that will guide your understand golf shaft design.

This journal is entirely supported by subscription. To insure my integrity, there are no ads on this site, that allows me to remain unbiased in the articles. If you believe as I do, that your golf shafts are essential to good golf, please subscribe. Acquiring shafts, measuring them and writing articles takes a great amount of time. Your subscription underwrites the time and resources needed to keep this journal going and growing.

This video is a detailed discussion about golf shafts stiffness and the history of how they were measured and marketed. It is one of many videos about golf equipment technology and golf club building on my youtube channel, Devoted Golfer.

It took years to understand shaft measurement and many more years to accumulate a meaningful database of shaft measurements. The magnitude of that accomplishment did not occur to me until a golf shaft company owner said it to me. Several golf shaft companies now use the EI measuring instrument I designed and manufactured. If you are a golf professional and would like access to more data there are two choices. Golf Professional subscribers get access to a larger set of data and individual profiles of all the shaft model weights and stiffness variations that were made available. Fit2Score Affiliates have access to the entire database through Excel. To hear a podcast interview I did about golf shafts with Tony Wright, a Fit2Score Software Affiliate, Click Here.

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OBAN Isawa GLD Driver Shaft Review

OBAN ISAWA GLD Golf Driver Shaft Review

By Russ Ryden, Fit2Score, A Dallas Fort Worth Club Fitter & Club Maker
The Highlands Performance Golf Center, Carrollton Texas 
and Daniel Spurling, PGA, Director of Player Development
Lonnie Poole Golf Course
Golf Digest Certified America’s 100 Best Club Fitters

My first impression of the new Isawa GLD is stunning. I have grown fond of Oban golf shafts for that very reason. You can spot them from a mile away. Their bright colors and well-placed shaft bands turn heads on the range and the course. I’ve always told my customers that if what they’re looking down at doesn’t inspire confidence, then they shouldn’t put it in their golf bag.  Oban certainly helps players there. The Isawa GLD is a time-tested design.  Soft mid and firm tip shafts are a great option for many players. If you’re ready to invest some money into your equipment and don’t have access to a professional Club Fitter this type of shaft would be a safe bet.

Most shafts will have different launch characteristics as they span through their weights and flexes. The GLD consistently produced similar flight through the 7 offerings. When paired with their appropriate players the shafts remained stable through on and off-center strikes and transmitted sufficient feel back up through the handle. It was notable that less skilled players, were able to more accurately identify where the strike was located on the club face while testing the GLD. They commented that they hadn’t had the ability to identify that in their previous clubs.  The torque numbers are exceptionally low for the price point Oban is offering its players. In the most laymen of terms the torque value is going to correlate with how bad your off-center strikes are going to be. When you see low shaft weight and low torque you can expect to pay big bucks. The Isawa starts with a softer butt section reenforced with a new proprietary carbon fiber material integration. There is a slight increase in stiffness in the upper mid-section around the 30in mark with the same bump in stiffness a little lower down the shaft in the extra stiff 60g and 70g shafts. I’m wondering if this is a nod to the very successful original Isawa from Oban released in 2015.

A fitted golf shaft is a platform for consistency. The fitter’s responsibility is to find the correct composition of golf club in order for the player to hit the center of the club face as consistently as their skill level will allow. I found, like the profile suggests, the GLD fits a wide variety of players. Where I see the GLD separate itself from similar shafts in its category is the butt section. When you have a stronger tip section you have to give up some rigidity somewhere else in order to translate feel back to the hands. In most cases it’s the butt section of the shaft that gets thinned out. Fitting players into the correct butt stiffness is the hardest part of club fitting because butt stiffness correlates with feel. Feel is the one thing you can’t teach. It’s organic and must be self-discovered. If you give a discerning player a shaft with too strong a butt section, they are going to tell you it feels boardy. The GLD is equipped with a softer butt section than a lot of shafts that are stronger on the bottom end. This is where it found a place in my fitting matrix. Oban has integrated a proprietary carbon fiber material to reenforce the weaker butt section of the GLD giving it exceptional energy transfer back to the players hands. I have the most success fitting the Isawa GLD with players who have back swings short of parallel. A short backswing usually denotes a quick transition and faster tempo. These swing characteristics put more stress on a shaft. When you add speed to that mix you automatically start to consider stronger shafts. I wouldn’t describe the GLD as a strong golf shaft but it certainly feels softer than it plays. The weaker butt section of the GLD provides exceptional feel to players while allowing them to venture into a stronger tip than they are used to.  I recommend the GLD to players who have faster than average tempos who are looking for enhanced feel from a stronger mid launch mid spin shaft.
Daniel Spurling

To continue reading this section of the review, you must be registered at a higher level membership.
Russ

Oban ISAWA Red Driver Shaft Review

By Russ Ryden, Fit2Score, A Dallas Fort Worth Club Fitter & Builder
The Highlands Performance Golf Center, Carrollton Texas 
Golf Digest Certified America’s 100 Best Club Fitter


A box of the new Oban ISAWA shafts arrived and as I was preparing them for measurement I was wondering just where Oban would go with a new design. They already have 5 shafts in the premium Kiyoshi family covering a wide range of profiles . They have the the Devotion in the in the high mid price range and the Revenge in the lower mid price range. Just what was the ISAWA going to bring to the party. The first thing I noticed was the MSRP, $199. Putting it in the same price range as the Devotion and the Revenge. It is a different profile from all the other Oban shafts.

To continue reading this section of the review, you must be registered at a higher level membership.
Russ

Graphite Design Tour AD EK golf Shaft Review

By Russ Ryden, Fit2Score, A Dallas Fort Worth Club Fitter & Builder
The Highlands Performance Golf Center, Carrollton Texas 
Golf Digest Certified America’s 100 Best Club Fitter


The Graphite Design Tour AD is another in a long line of Graphite Design shafts with a close match to the AD DI and the many, many shafts that resemble that very popular profile. There is a new Torayca fiber in the tip section and a higher balance that many previous versions of this profile.

To continue reading this section of the review, you must be registered at a higher level membership.
Russ

ACCRA Tour Z Green Driver Shaft Review

By Russ Ryden, Fit2Score, A Dallas Fort Worth Club Fitter & Builder
The Highlands Performance Golf Center, Carrollton Texas 
Golf Digest Certified America’s 100 Best Club Fitter

ACCRA products are primarily distributed through certified club fitters, ensuring every player receives a shaft optimized for their swing. They are sold through Performance Fitting Centers (PFC) which are expected to fit with launch monitors, possess an array of interchangable fitting shafts and have the ability and tools to build clubs. We are told the Tour Green is a medium spin, mid launch shaft designed for moderate tempo seings.

To continue reading this section of the review, you must be registered at a higher level membership.
Russ

ACCRA Tour Z Red Driver Shaft Review

By Russ Ryden, Fit2Score, A Dallas Fort Worth Club Fitter & Builder
The Highlands Performance Golf Center, Carrollton Texas 
Golf Digest Certified America’s 100 Best Club Fitter

ACCRA products are primarily distributed through certified club fitters, ensuring every player receives a shaft optimized for their swing. They are sold through Performance Fitting Centers (PFC) which are expected to fit with launch monitors, possess an array of interchangable fitting shafts and have the ability and tools to build clubs. We are told the Tour Red is a low spin, low launch shaft designed for fast tempo swings.

To continue reading this section of the review, you must be registered at a higher level membership.
Russ