[ChrisNZ]

Surely this would have to be very idealised, at least for an iron shot. As low point is usually underground separation would occur once the club had entered the ground, lowering separation clubhead speed.

For a non-idealised application, the further back the ball is played the more the clubface is closed to the left arm wedge? Would the hookface built into clubs have something to do with it also? Perhaps the non-ideal ideal is to align the wedge with the (theoretical) leading edge if the clubface was not hook faced (just a thought which could be very wrong!!!!)

Chris