I got my C-16 driver yesterday. It is an interesting club. Took a few swings in the mist on my launch monitor. Compared to my 915-D3, both with a Graphite Design DI-6 shaft, I was up 5 MPH in ball speed and down about 350 RPM. The sound is quite a bit different, one of the guys said he thought it sounded more like a persimmon club.