I went to a shop yesterday and demo a Yoshimura driver into a net. It is a 450cc Ti and the shaft, I was told, a Mamiya shaft (55g at 4.8T). It felt ok but then it is into net and I am not sure whether I can trust those 'simulators'.as to the launch angle or distance. Judging from its catalog, it seems to be a small Japanese outfit that also sells components. The 450cc driver reminds me of the Work driver I just demo in Japan. I would be grateful for any additional info, comment or expereience from all you Japanese club experts out there.

Many thanks

very small brand, no real exposure and has not proven itself yet to the masses.