[Jeff]

CPwindow

I don't see how you can definitively conclude that his his clubshaft will get under the handplane in the later downswing. I can agree that he may have a problem with his pelvis outracing his upper torso and arms and that he may not be able to easily square the clubface, which will result in pushed shots.

I do not know the golfer personally. He merely wrote and stated that he tended to loss his lag on certain swings and he thought that it mainly occurred when he reverse pivoted.

I agree that having a large amount of lag (like him) is not necessarily advantageous if he cannot complete his swing on-plane in a perfectly synchronised manner.

Jeff.