An Interesting concept Peter on how arm speed works in the golf swing! I have never thought about how the club slows down and speeds up. What I try to do is have a smooth takeaway and downswing with a proper hinging and unhinging of the wrists and a folding and unfolding of the right elbow. Hopefully, my timing will bring all of this together at the right time for a perfect strike. Peter, I always find your videos give me something to think about! Well Done!!