Thanks again Knotted, I will ask about the flex-rotate. I am a former knee-locker, but a PT from several years ago broke me of that one. I am still a Betty Booper, but I've been working on pulling in the low belly and not sticking out my butt more lately. It's hard and I can only do it for a few minutes before I need to rest, but I can do it for a lot longer than I initially could.