[cometgolfer]

I have no horse in the race but for all the science I've seen touted it doesn't seem to refute that when I hinge differently (and I DO understand hinging and can execute it) I STILL get a lower straight and penetrating trajectory with HH, a higher and slight l-t-r traj with AH (easily offset with an address correction of the face as needed), and a very high traj with VH.

As much as I'd like to side with "unadulturated science" I don't understand what it tells me that I'm not already experiencing with HK's ingeniously simple hinge-action description. In fact I'd argue that HK's hinge description makes it much easier for any golfer to execute the motion rather than the golfer having to figure out how to move the face to achieve a set of numbers thru impact.

cg