Mitsubishi Diamana W-Series Third Generation White Board

By Russ Ryden, A Golf Digest America’s 100 Best Clubfitter
Fit2Score, Dallas Fort Worth, Texas

The third generation Diamana White Board is a departure from previous designs. Like many shafts in the 2013-2014 season of super low launch head designs, it creates a higher launch tendency presentation of the head to the ball.

Three Generations of Diamana White Designs Compared

There was little change between the first generation Diamana White Board and the second generation ‘ahina. Torque was unchanged, weight went down slightly as the era of higher density materials began. A stiffer tip area required an adjustment to the mid section of the shaft and a quicker loss of stiffness in the mid-tip transition zone.

In the third generation Mitsubishi Diamana W Series we see a huge change in the EI profile of the shaft. The Tip to Butt ratio, a simple indicator of launch tendency is unchanged, but the path there is quite different. The signature profile of the White Board, and its cousin, the Mitsubishi Fubuki Alpha, a mid shaft bump in stiffness is gone. What we see now is a profile that is similar to many shafts, a consistent loss of stiffness from butt to tip. The signature mid shaft bump is still there, albeit lower and softer. And, unlike previous generations, there is a slight but significant change in profile as the Diamana W series gets heavier.

UltraLight vs 50 gram models

A 50 gram version has been added to the line.  The Diamana W series 50 gram model have higher torque, consistent with creating feel in a light weight shaft. The tips are softer, and in looks much like a stouter version of the ultralight Bassara W series. The line between ultra light shafts and light weight versions of standard Mitsubishi models is blurred with the introduction of 50 gram shafts in both the Diamana W and Diamana B shafts. The Bassara models extend down to 40 gram models, but the 50 gram Diamana’s bridge the gap between the 50 gram Bassara’s and the 60 gram Diamana’s.

Radial quality of all the review samples was excellent. The Diamana W series is suitable for rotating hosels without any regard for alignment. As you can see from the chart above, it does not get any better than this.