Originally Posted by Jeff
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I have still not received an informative opinion that explains the biomechanical difference between a finish swivel action and horizontal hinging - with respect to the movement of the left hand.
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Jeff,
Like many things TGM, you may be making the application of hinging more complex than it really is. But keep working on the biomechanic aspects because there are opportunities for further learning there.
Homer differentiated Hinge Action from Swivel and even though they are tightly related, you can't describe swivel as a hinge action because they can be separate as well. For instance, you can have the appearance of a horizontal hinge swivel while executing angled hinging. Rhythm is intregral to the hinge action motion.
Also keep in mind that clubface motion differs for each hinge action. Horizontal is closing only, angled is simultaneous closing and layback, and vertical is layback only.
There will be a video up tonight of Jeff Hull demonstrating how he applies hinge action. The video was shot a few days ago at the ATT Classic while Jeff was on the practice range. It should help many peel a few layers off the onion.