Hit the TM super fast 2.0 and the R11 drivers today's.Why can I swing the R11 faster than the Superfast???? Like 10 MPH..swing speed from around mid 80 to mid 90. I did start with the superfast and hit 15 balls with each.So being warmed up wasn't the case. At least I don't think it was.Maybe I should go back and start with the R11??????