Yes, per my editing above, that is the only way for the OP to proceed if and only if he/she does insist on proceeding, regardless how desperately the gymnast wants to learn the skill.The only way you [STRIKE]should[/STRIKE]MUST proceed, if still convinced the kid needs your help, is to tell her parents to enlist the help of a coach who's taught the skill before. That coach can act as your mentor, and guide the process in a way the coach feels appropriate, with in person supervision through the key moments of the skill.