Vilija
Warren Scout
The trouble is, those of you who haven't had problems with stasis etc don't know whether what you've been doing is beneficial, whether you've just been lucky, or whether your bunnies are particularly robust. That's why I don't think anyone really knows the answer to the OP's question.
I think that is the problem, no one will ever know for certain whether it is genetics or previous feeding experience (if that makes sense) or a combination of both, so all we can do is try our best to feed them the best diet possible.