IMO rubber boas dehydrate very easily. They seem to have thin skin. When I had them, they had a moist hide box which they used alot, and they never had skin problems or otherwise.

I know for alot of baby colubrids, access to a moist hide makes a huge difference in feeding reponse. I say this because I live in a dry area, and I have seen the difference moisture makes in neonate snakes.

Anyway, just something to ponder.