[Jeff]

HB

You wrote-: 'It is much more dynamic to change the tilt in the downswing than to pre-set it at address."

It is much more dynamic to change from a slight reverse tilt (pivot) at the end-backswing to a large degree of secondary axis tilt at impact. However, I suspect that it far less mechanically efficient than Jamie Sadlowski's swing. He has no reverse tilt (pivot) at the end-backswing position. He has the classical reverse K position seen in Hogan's swing.

Jeff.