The Fujikura Motore Speeder VC7.2 Tour Spec is exactly what it says it is, a tour shaft geared for distance. The Speeder VC7.2 will give you the lowest launch of the entire Speeder series, along with the most roll. If what you're looking for is a piercing flight in a heavier weighted shaft, the Motore Speeder VC7.2 is what you need. The VC7.2 will feel a little bit stiffer than the VC6.2.
Kevlar Triax is designed to reduce ovalling on the Motore Speeder VC6.2. 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.