Originally Posted by TheCheese
I have to very much disagree.
It's not a continuum, but two very distinct techniques and biomechanical movements that should not be confused.
It's supination vs pronation. Trade-off between ball speed and spin vs simultaneous production of both.
Someone with a semi-western using the Roddick technique vs the Federer technique produce a VERY different looking stroke and very different results.
supination vs pronation? i think you made a mistake there.