I've got a Q for those of you saying you use T-Motor props, but have the Heliengadins as backup - wouldn't you need 2 complete sets, and, to be safe, backups for at least one? It seems like if you had to put a single set of Heliengadins on with 3 sets of T-Motors, that would be asking for trouble, at the very least, a rough flight. Thoughts?