One thing nagging my brain that I forgot to include (not that it matters to anyone else) is that it is unequal dorsiflexion, specifically, that causes inside tip lead. Usually, an advanced intermediate A frames in both directions/planes which takes the inside ski out of the picture. The tip lead A frame slides that ski too far forward of the CoM and pressures under the ski more aft compared to the outside ski - not good. Unequal tipping from unequal femur rotation has the inside ski carving a bigger radius than the outside ski which also takes it out of the "picture". The reason to remove the A frame is to stop dragging around a lame appendage.
