I have tried several different patterns of relatively fitted women’s pants, including a couple of Sandra Betzina’s. I know I have a flat seat, and a bit of knock knee, and somewhat large thighs and calves, but even after adjustments for those (I don’t think I needed the flat seat adjustment in Sandra’s) I find that when I bring my leg forward with knee raised to walk, it binds so that I can’t really walk. The pull is through to the butt, but scooping more out of the back crotch does not help, nor adding to back crotch extension. Unless maybe I am not making big enough adjustments. Enough ease according to Betzina’s “Fast Fit”. Thoughts?