[Yoda]

Three thoughts on this business of Divot Depth:

1. The bottom of any near-circle (Clubhead Orbit) with a five-foot radius (Left Arm and Club) is going to be relatively flat. Not perfectly flat, mind you, but relatively so.

2. When the Ball is played well behind Low Point, the Plane Angle can also be made Flatter, which aids in Divot Depth control.

3. The collision of Ball and Clubface will tend to drive the the lesser-lofted Clubs straight back and the higher-lofted Clubs more into the ground. This 'equal and opposite' reaction combined with the flatter plane of the longer Clubs produces shallower Divots with the Long Clubs and deeper divots with Short Clubs.