The toughest thing to communicate is that all strokes on an inclined plane are three dimensional. Most folk try to go forward when ONLY down and out will do.
Getting to low point with the correct hinge action.Before that we need to get the rt elbow in pitch position with the magic of the rt forearm.Before that we need a flat left wrist with extensor action at the top. , We must insure they on plane with a stationary head ( turned shoulder is my favorite ) .
Oh yea they had better have a nice zone 1 pivot and train the hands to lead this symphony.But first a great grip and the coded map of this complicated movement.
But the most important is to stress that their main problem is that
THEY DONT NOW WHAT THEIR PROBLEM IS.
They say the devil is in the details I say the devil is not knowing the details
-------------MAC O'GRADY
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"The Moving Finger writes: and, having writ, Moves on: nor all thy Piety nor Wit Shall lure it back to cancel half a Line, Nor all thy Tears wash out a Word of it." - Rubaiyat of Omar Khayyam