Srixon W-506 Driver. Features a large 450cc clubhead size. The high power weight of the W-506 moves the centre of gravity (CG) low and deep in the clubhead to help further promote those optimum launch conditions. In addition, the W-506 features Srixon’s unique Autoturn Design in which the CG is moved progressively towards the heel as the lofts increase, making the higher lofts easier to square at impact for the slower swingers who generally favour them. Complementing the Srixon W-506 driver is the proprietary Srixon SV 3004 graphite shaft which has been custom designed specifically for the W-506. The flex, torque and weight characteristics of the SV 3004 have been optimized for the dynamics of the W-506 design.