NGS, a premium Japanese shaft maker who has brought us their top performing shafts in the past like the Mach Line Proto series and D Rev Tour lines has decided to join the high grade carbon market with the launch of their new D Rev lineup.
So how does carbon grading work? Shafts are created with carbon fibers weaved together, and these fibers are measured by their modulus of elasticity in tension. Typical golf shafts are around 24t or 30t, the measurement of tensile strength. These lower grade shafts are more flexible and because of this the shaft is slow to regain its original shape on the downswing creating inconsistent impact where a player must rely heavily on timing due to the flexibility of the shaft.
As the tensile strength increases, the carbon weaves are more dense, more rigid and return more quickly to their original shape. The flex and rebound of the shaft becomes more predictable equaling more consistent shots and much tighter dispersion. The higher tensile ratings ratings in golf shafts are also related to the higher grades containing more glass and metal particles which are more rigid while lower grades containing more flexible rubber particles. Higher grade carbon shafts provide more feel and explosiveness, even though they use those tightly weaved, denser carbon weaves, typically high grade carbon shafts have very active and thinner wall sections which lead to very high but controlled elasticity.
The D Rev SEVE is a full length 80t model and it is designed to produce maximum elasticity and energy transfer for maximum distance performance. The Seve has a softer butt than the Rey and similar center stiffness. The tip however is not as firm as the Rey for a slightly higher launch and more active kick at impact. Torque is slightly higher at 3.6* and the SR and S flex are 58 and 60 grams respectively.
The SEVE is best for the semi aggressive player wanting both distance and stability in an active shaft with a lot of feel. The SEVE plays very much true to flex if not stiffer than most.