Hinge Action is a Left Hand Motion through Impact that controls the Clubface by maintinaing the Flat Left Wrist Vertical to one of the Three Planes of Motion. As such, though it may have the appearance and Feel of a 'Roll,' it is not a true Rotation. Study 2-G and Sketch 2-K #5.
In contrast, the Swivel is Left Wrist Action that on the Backstroke, Snap Turns the Vertical Left Wrist On Plane, or on the Downstroke, Snap Rolls the Turned Left Wrist Vertical for Impact or the Vertical Left Wrist back On Plane for the Finish. As such, it is a trrue Rotation. Study 2-G and Sketch 2-K #4.
The Swinger's Total Motion has three Swivels: The Start Up Swivel; the Release Swivel (that mirrors the Start Up Swivel); and the Finish Swivel (out of the Follow Through Interval). The Hitter's Total Motion has only the Finish Swivel.
Homer Kelley clearly differentiated Hinge Actionduring the Impact Interval from Swivel Actioninto and out of the Impact Interval. Again, Hinge Action -- Horizontal, Vertical or Angled -- is not a 'true' Rotation of the Hands. Swivel Action is. Hence, at no time should a Swivel Action replace a Hinge Action during Impact.
This is true even when using a Snap Release, during which the Impact Interval is so short -- almost instantaneous -- as to 'Feel' like a Swivel. Remember, even if the Hinge Action lasts only a couple of inches, that's all you need.
Hybrid Mode
