The Wilson Staff Dd6 Driver is 40cc bigger than it's Pd6 brother and most of this extra size goes into the back of the head which is deeper and slightly shallower. That said the face is still big enough to provide lots of forgiveness and it is a little more closed than the Pd6 so to suit the mid to high handicapper. The standard nano tech shaft feels good and there is wide range of alternative shaft options for the Dd5 driver. The flight of the ball was good although the head did not feel as lively as similar models at impact. Overall the Wilson Staff Dd6 driver is a solid club and good value for money as it is a little cheaper than it's rivals, but if you can spend the extra, then there are better alternatives around.