I'm going to try to do a search, but offhand is there anything that can help with an arched/curve back? One of DD's coaches mentioned that she foresees big deductions on flat back vault and floor. We actually have started trying more handstand exercises against the wall and holding handstands, and it seems like she truly can't help it. It's weird. Her rib cage sticks out if you try to hold her back in as straight a position as possible, and then she says it is hard to breathe. At the same time, she is really flexible and can practically bend herself backwards in a complete circle, but apparently the tight/straight handstand is a problem. I don't think it's for lack of trying though.