So, what you are saying is that you teach your wrestler to try to injure the nose when he or she throws a cross face. If a cross face is thrown to hard it is illegal I see what your saying but if you or any other coach is showing a cross face to hurt someone you dont have a moral stand point of wrestling. A mask if not fit properly can be a pain I have saw it before where a mask kept causing the headgear to slip off and cause problems. I understand where your coming from but its a matter of ethics on how you teach your cross face i guess.