In the Larry Nailon article I was more interested in the second page where he talks about things that cause variation in felt recoil. I thought some of the info about pressure, shot deformation, and so on could use some proof reading and clarification.
He mentions grip as a factor. The extreme might be a hip shooter taking all of the recoil with hands and arms. The exhibition shooter demo'ing the Xtrema II at Beretta's site holds it upside down over his head to shoot clays, and holds it with just one hand to shoot clays. I am curious if or how any of that could be factored into 'normal' shooting w/o causing other problems. Tightening the grip too much too soon is kind of like flinching.