The Fujikura Motore Speeder VC5.1 is a lightweight shaft fit for the average golfer. It's purpose is to increase distance without sacrificing too much accuracy in the process. The Speeder VC5.1 has a mid launch and a mid spin, with an mid tip stiffness. This makes the Motore Speeder VC5.1 an overall easy shaft to hit.
Kevlar Triax is designed to reduce ovalling on the Motore Speeder VC5.1. What that means is throughout the swing and at contact the shaft will maintain it's circular shape. What this actually does increase stability of the head during impact.