If any of those snakes you're trying to switch are females, and you're breeding them, the best time to try to switch them is right after they lay a clutch of eggs--they are hungry and will take most anything you offer. I'm hoping to use this trick to get my het albino female on f/t . . . if she ever gets to breeding size (the picky girl LOL). Right now she will only take pre-killed (but hey, at least it's not live ), and she is more stubborn than me, especially since I'm trying to get her up to weight for breeding. I tried f/t for a while and she outlasted me. But I'm hoping the "right after egg lay" thing will do the trick if she ever gets there.
Thanks for that will keep it in mind..pewter ate the rat lol!