I too have issues getting up heelside. I rarely sit to strap in but when I do I have to flip to toe side.
I uh, have a feeling it's due to the female weight proportion compared to males and our much lower center of gravity.
This may seem a pretty dumb question but I really want to appreciate the problem after a few people already mentioned it in this thread. Are you saying that after you rise up from sitting down (maybe doing your bindings), you would prefer to start riding with your back facing down hill as your initial posture?