I agree that many of the Macdonalds drills promote good actions. This Drill isn't one of them. Swinging the Clubhead is treating the Golf Swing as a Pendulum System. The Golf Swing is a Lever System. The Backstroke and Downstroke are very different.
What are you talkin aboot? Wild Bill Drill ? McDonald exercise? I did say that it was common for guys to underestimate them, especially the more accomplished golfer. McDonald said this in his book.
Dont prove him right D!
Wild Bill Drill (WBD) worked for Hogan .
When Im waiting for my turn to take a shot . I sometimes walk over to the heavier grass (if im not in it) and WBD some brushes in both directions. Next shot is always a corker .