Mitsubishi Diamana GT Driver Shaft Review

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Mitsubishi Diamana GT 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 Mitsubishi Diamana GT is one of the 5th generation Diamana models. Mitsubishi Chemical Group is unique among the golf shaft companies, they are vertically integrated. They make all of the critical raw materials that make up the golf shaft including the monomer, acrylic fiber, carbon fiber, resin, and prepreg. Prepreg is the sheets wrapped around mandrels that are the material of the carbon fiber golf shaft. Other golf shaft manufacturers purchase the prepreg used in their shafts. This allows the Mitsubishi Chemical Group to create unique technologies in their golf shaft designs.

Once again, Mitsubishi has reduced resin content in the 5th generation Diamana with a proprietary resin system named Xlink Tech. 

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Russ

Mitsubishi OTi Taper Iron Shaft Review

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Mitsubishi OTi Taper Iron Shaft Review

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

MRCOTi_BradingMitsubishi Rayon has expanded the braided OTi iron shaft into a constant weight tapered shafts. This is explained in greater detail in the review of the OTi Parallel shaft The OTi shafts starts with a new form of prepreg they call Tow. The carbon fibers are arranged in bundles, the way a steel cable is made. The bundles are impregnated with resin and then woven into a braid. That braid bundle is then slipped over the mandrel. You might think at this point no spine. There is a common misconception that spine is caused by sheet overlap or welds. My experience is that it is the result of roundness or more specifically lack roundness of the shaft. In carbon fiber, that is mostly caused by outer wall sanding. The redial consistency numbers show below the measurement charts rates this important quality consideration.

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

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

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

Mitsubishi Diamana Thump Iron Shaft Review

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Mitsubishi Diamana Thump Iron Shaft Review

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

 

This is the second release of a Diamana Thump Iron Shaft. The first release, in 2010, was eventually discontinued. At $160 per shaft, or $1280 per set of shafts, there was little interest. I am surprised to see the shaft again being offered. Perhaps PXG’s success at selling uber expensive irons demonstrated there is a market for ultra premium irons.

What exactly do you get at $160 per shaft? Much like an exotic sports car you get light weight strength. I am seeing equivalent steel stiffness with 10 to 15 grams less weigh. I am not referring the the R,S,X denoted on shafts. Those letters are meaningless ways to compare shafts outside of their own particular model. I am referring to area under the EI curve, the only functional method I have seen to rate shaft stiffness. I have to get into the 125 gram range in steel to see a stiffness match to the 2018 Mitsubishi Chemical Thump 105 gram iron shafts. These are truly exotic iron shafts at a truly exotic price. Unless you are comfortable with the stiffness found in something like a 125 gram KBS tour this is not a shaft you can load. But if you are, you have to see what happens when your clubs weigh loses 15 grams. Let’s take a closer look at the numbers.

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Russ

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

Dynamic Gold 115 Wedge Shaft Review

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Dynamic Gold Wedge Golf Shafts – True Temper

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

The introduction of the Dynamic Gold 115 Wedge shaft is yet another event recognizing the trend toward lighter clubs and shafts. The Dynamic Gold Wedge shaft is 130 grams, the Dynamic Gold 115 sheds 12% of the traditional weight. It is time to refresh the 2014 article about Dynamic Gold wedges, putting the Dynamic Gold 115 into perspective with the other TrueTemper wedge shafts. 

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Russ

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

Oban CT-100 Golf Shaft Review

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Shamida / Oban CT-100 Golf Shaft Review

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

The OBAN / Shimada CT-100 is a lower weight version of the CT-115 released last year. They give the club builder the ability to fine tune set stiffness in a constant weight, taper tip design. Iron shafts have traditionally been parallel or taper tip. I wrote an article, Parallel vs Constant Weight Irons Shafts, explaining the differences several years ago. The CT-100, like the CT-115, is a set of 12 constant weight shafts from which the club builder selects a group of shafts to build to an exact the stiffness range. This combines the best aspects of constant weigh taper sets with the tunable stiffness of parallel iron sets. This overcomes the tip stiffness compression inherent in parallel iron sets. If you did not understand that statement, read the technical article.

The discussion about the CT-100 starts at the 9:30 mark on this video shot at the 2018 PGA Merchandise show.

Lets take a closer look at the OBAN CT-100. 

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Russ

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

ACCRA Tour Z RPG 400 Golf Shaft Review

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ACCRA Tour Z RPG 400 Golf Shaft Review

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

ACCRA added a new profile to the Tour Z RPG in 2018. The Tour Z RPG is a lower launch version of the Tour Z RPG 300 reviewed last year. This video, shot at ACCRA day at the PGA merchandise has Ken Thompson of ACCRA explaining the RPG shafts to the club fitters gathered there.

ACCRA has moved some of their manufacturing to a Japanese foundry. The Tour Z RPG is a made in Japan product. It uses high modulus materials with the lowest resin content of any ACCRA shaft. A new material with a quad weave runs the entire length of the shaft. The 4 Tour Z RPG 400 shafts have consistent bend profiles. Fitters can work to find your proper weight and flex knowing each of these shaft have exactly the same bend properties. The radial consistency was 99.3% with a 0.5% standard deviation. They are round. 

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

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