Ok here's a somewhat recent video of my working on short turns. What was pointed out to me this morning by Sam Robertson is that I'm losing the flexion in the hip in the finish of the turn. The subject of the discussion was on the "athletic" stance. We had quite a discussion of what an athletic stance was. One of the elements is flexion in the hip (e.g. an anterior tilt to the pelvis). Why is this important? It provides access to leg rotation and tipping.
What's clear in this video, imo, is that while I develop this hip flexion in the initiation of the turn, I lose it in the finish. I suspect the reason is that I'm trying to get "backside heavy" to move to the tail of the ski to increase grip and set the edge. What I need instead is to move aft by flexing the knee as opposed to extending in the hip in the finish? In any case, finding a way to maintain the hip flexion is going to be my next focus, perhaps if I can get back on snow tomorrow...