Here are some picture of them holding the sword that slay the dragon.
Yonex manage to combine the aerodynamic of Z Slash, thin frame of Nanospeed the power of Armortec hence the birth of Voltric. The Voltric introduce a new technology called Nanopreme material on the shaft which is lighter and stronger.
I believe more and more professional player will slowly move into the VT series based on what the VT have to offer Power, Speed and Accuracy.