[Daryl]

Going beyond the Hula-Hula? I don't think so.

I see exactly what Kelvin Miyahira sees. But does he see the Power Package and "Pivot Train".

I'm not criticizing him, in fact I agree with him. Mcllroy is an Elbow Plane Swinger using a Sweep Release. This means that he pulls his arms down from the Top of the Swing. I think that this engages his Torso (Spine Engine) to Power the Swing. His Hips lead but don't Power the Shoulder Turn. There are degrees of Hip Action.

If we want to Take the undisturbed Power Package into Release, then the Hips need to Pivot Power the Shoulders.

Does this make sense? Whatever is Releasing, needs the preceding Component to become the Pivot Power Source or Pivot Backstop. Components preceding the Power Source of the Pivot serve motion and stabilization.

Not all Golfers Swing this way. Kelvin needs more than one theory to explain the source of Pivot Power in the Golf Swing. Or, he can read TGM.