[comdpa]

To a point, Length of Stroke (Acceleration Time) is an important factor in producing Clubhead Speed (2-M-2 #3). However, each of us has a Maximum Handspeed that we are capable of producing. And once we've reached that top speed, that's all we can get, no matter how long our Stroke or how much 'effort' we exert.

Think of the runner in a 100 yard dash. Does it take him 100 yards to reach his top speed? No. And once he has reached that top speed, can he run any faster? No. In fact, the best he can hope to do is to maintain that top speed until he crosses the finish line.

And so it is with the golfer and his Length of Stroke.

Beautiful explanation. And this would be related to 6-C-2-D Lag Loss yes?