I read some of the "ski tip" thread and realized with all the talk about stacking that there's so much I don't know. I could not visualize stacking, but this thread has helped (and I'll be watching the video after the youngsters hit the beds). I think my now the reason I find it hard to understand (and I love geometry and the angle visualization stuff!) is not because of the foot and ankle, but possibly because of my upper body. Since my lessons only went as fast as my 4yo and 6yo could go, we stayed pretty basic, thus the biggest sources of improvement were (1) when they got rid of their pizza/snowplow to turn with both skis facing forwards and (2) getting them to squash grapes. My 6yo wanted to ski like she was about to hit the lazy boy, so we did a lot of grape squashing talk. Because of that, I think my main problem may be that my upper body is hunched over. When a beginner focuses on squashing grapes do they often hunch over? I don't think my weight is in the back of my boots, but I honestly thought it should be way in my toes, and that seems clearly wrong based on these comments. Will unhunching restore correct balance? Also, do beginners tend to bend knees too much? I'm also wondering if I'm flexing my knees too much.
My current ski technique basically centers around watching the kids behind me. So I ski with my body facing backward, watching them, then I turn frontwards to enter my turn, and halfway through my turn I'm facing backwards again to watch them and gauge my speed. Bad, bad, bad form. I'll get some time to myself next year on the slopes, and I know it will feel strange to actually ski facing forward!