The XXIO9 driver is larger with more flare in the heel and toe.
The XXIO9 driver even comes with a shaft specifically made to optimize the performance of the driver head. The MP900 shaft is constructed of hoop layers. XXIO claims that with this lighter shaft, torque [the twisting of the shaft] is kept to a minimum. This means that the face of the driver will not twist, which results in consistent ball flight.
Less moving parts in the golf swing means more consistent shots!
SO WHO IS THIS DRIVER GOOD FOR?
Golfers that are looking for more distance and consistency will favor the XXIO9 driver.