This 2009 new edition featured something "NEW"....Mr. Homer Kelley and "The Golfing Machine"...elbow plane; Ben Doyle...credits...but Jim still don't buy in the stationary post...anyway, good job by Jim.
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If you cannot take the shoulder down the clubshaft plane, you must take along some other path and add compensations - now, instead of one motion to remember, you wind up with at least two!
I was flipping through Hank Haney's 7 Step book when at the book store...........he's still talking parallel planes and right wrist cock and uncock etc. A total loss of the right forearm flying wedge! The geometry is hard to grasp but once you get it, you'd never change your mind about it and it works too. Really works!
Well have to give them some time, Mr Kelley's work is only 40 years old now. Still in its infancy. But someday somebody is going to lap the field and proclaim the benefits of the right forearm flying wedge............or did Brian Gay just do that?