 Can you reuse that same piece, or is it already warped and that's garbage? No, you can. It will straighten out again. In fact, it probably wants to straighten out, but it can't because it's sort of stuck in place, right? Too tight, yeah. I think you can use it again. If all the pieces are the same length, you don't have to number them, but if they weren't, I would just put tape on and number each piece.