@AdamCord totally agree, going to have more knee bend on good side cut. But, the goal is the same, to stay on top of your ski with your hips, while behind the boat and through the transition. In both pictures above, particularly the onside cut, his hips are back. This is something he has been working on in recent years and has greatly approved upon, probably nobody better at it except Nate. So, my point is you can still muck up your main goal of staying centered on your ski with straight or bent knees.