Its a bit of a chicken and egg thing I guess and very big topic. Biomechanics etc. I love the David Orr RFT video. Thought provoking.
I'd say the Knudsons, Doyles and McHattons of the world already have very educated hands. For them the pivot maybe is supplying a supporting force, to the arms travel. I can see the pivot throwing the arms "back" and "in" but not "up" for instance. There must be something else going on to get the arms up. I think.
For the rest of us mortals if the pivot is throwing the hands off in the wrong direction (normally too far "in" or under the plane ) then I think we should put our minds in our hands and let our brain work with them. Extensor action really helped me with all of this.
Anyways Ill let the bigger brained pro's wade in here, if they feel so inclined.
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