[Yoda]

At Impact, the Hands and Clubhead are traveling at the same Speed and RPM.

I don't have any specific data available, but generally, through Impact, the Clubhead moves about five times as fast as the Hands. For example, a Clubhead Speed of 100 MPH means a Handspeed at 20 MPH.

So, at Impact -- assuming the 'In Line' Clubshaft and Left Arm (Rhythm per 6-B-3-0 and 2-G) -- the Hands and Clubhead are, indeed, traveling at the same RPM, but . . .

Not at the same MPH (Surface Speed).