At 67, I’ve lost several yards on my drives. Paul Wilson’s Body Swing System caught my eye as my current arm swing seems to be failing me. Years ago I purchased his Swing Machine book. For medical reasons ( back ) I started more back friendly swings but I fear that those 3/4 arm swings have cost me distance. I dusted off the SM book but now wonder if I’d be better off purchasing his Body Swing System. Your thoughts and advice would be greatly appreciated particularly from those who have had successfully transitioned from arm swing systems.