Monthly Archives: April 2017

Rifle Parallel Iron Shaft Review

True Temper Rifle Parallel Iron Shaft Review

By Russ Ryden, Fit2Score, A Dallas Fort Worth Club Fitter & Club Maker
The Golf Center at the Highlands, Carrollton Texas

TTRifle_LabelTrue Temper reintroduced the Rifle Iron Shaft in 2017. it is a parallel shaft which a True Temper Performance Fitting Certified Club Maker can trim to exacting stiffness. The Rifle shaft has a long history in the golf business and was once a popular shaft on the PGA tour.

Performance Fitting Center Club Makers are educated and trained by True Temper. They are knowledgeable about True Temper’s proprietary technologies and how they can improve each golfer’s game. Performance Fitting Centers offer True Temper’s full line of catalog products in addition to products exclusive to Performance Fitting Centers.

RPRifle_LabelWhen I was new to club making I attended what was then a weekend seminar to become a Rifle Certified Clubmaker. I learned the history of the research done by Dr. Joe Braly. That research pioneered the effort that is ongoing today to find a synergy between the golfer and the golf shaft. Quoting from my Rifle training manual, “The conventional process of determining shaft flex strictly by weight does not recognise a number of other variable that can stand in the way of producing a correctly matched set of clubs.”  I am not certain that we yet fully understand that synergy. But, the research that resulted in the Rifle fitting system was a pioneering step in the history of club fitting. I know a number of golf pros that still speak fondly of their Rifle shafts sets of old.

Lets explore the Rifle fitting process and compare the Royal Precision Rifle to the True Temper Rifle. 

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Enjoy and Good Golf,
Russ

Nippon Modus3 120 & Modus3 130 Golf Shaft Review

NIPPON N.S.PRO MODUS3 120 & MODUS3 130 Golf Shaft Review

By Russ Ryden, Fit2Score, A Dallas Fort Worth Club Fitter & Club Maker
The Golf Center at the Highlands, Carrollton Texas

Modus3Image

Sergio Garcia took his first major title playing the Modus3 130 X in his irons. Unlike carbon fiber shafts which change every few years, steel shafts remain available for a long time. They do not get replaced every other year with a new model. New models get added, but the successful designs stay on the market for years. This review of the Modus3 Tour 120 and Modus3 Tour 130 was first published in 2013. I updated it with charts from the current measuring standards. I have fit countless golfers into the Modus2 120. Recently, I was given a head only account by Mizuno and added the 120 and 130 to my fitting cart. I can now fit a shaft I know well, economically, into Mizuno heads. Within days of adding it to my Mizuno cart it is a winner it producing tight dispersion patterns.

After several years of PGA tour testing, the Nippon N.S.Pro MODUS3 was made available to the golfing public in 2010.  In 2013, a second version was moved from the tour to the public.  There are some unique properties to these designs.  One of which is the use of a spring steel alloy.  Rather than me tell the story, Here is a video I shot early in my video journalism days that tells the Nippon N.S.Pro Modus3 story. Lee Oyer, the PGA Tour Representative for Nippon is one of the great fitters in golf. His fitting skills are praised by his fellow tour fitters.

The Modus3 profile shows a quick loss of stiffness near the butt and a long stiff tip. It is made from a different grade of steel. It is in the bags of several PGA tour pros and has accumulated a lot of wins since it was first introduced in 2010.  It is light, installed weight is around 104 grams.  This is where the game is headed and Nippon has developed light weight high performance shafts using materials from their parent companies automotive experience. Here is a look at the linear and radial profiles of the original N.S.Pro Modus3 Tour 120 and the N.S.Pro Modus3 Tour 130 introduced to the public in 2013.

The technical discussion, measurements and testing results are available only to registered readers

At the 2013 PGA Merchandise Show Demo day, DevotedGolfer.tv editor John Taylor discussed the Modus3 with Hiro Fukuda of NHK Intex Corporation/Nippon Shafts.

In this interview Hiro Fukuda mentions control of wall thickness to shape the stiffness profile of the shafts.  This illustration from the Nippon 2013 product catalog illustrates what he is talking about. Modus_Walls In a uniform material, steel being a uniform material as opposed to carbon fiber, wall thickness and shaft diameter create the bend profile of the golf shaft. By looking at these images and comparing them to the EI profiles, you can see how wall shape translates to bend profile. Those of us that are affiliated with the Fit2Score EI profile knowledge base like to see manufacturers using EI profiles to explain shafts in their publications.  It validates our system when our graphic images closely match those created by the shaft company engineers.