Srixon W-302 driver. With the same trajectory control and impact power face technology that made Srixon’s XXIO driver the number one selling driver in Japan in 2002, the Srixon W-302 incorporates an internal weighting scheme that is optimised for the faster swinger. The Srixon W-302 driver boasts an extremely thin, forged 6-4 titanium clubface (3.1 mm in the middle and 2.35 mm on the periphery) for the highest allowable COR by the USGA.