I've also heard that bathing before a shed is bad because it strips away natural oils that aid in shedding.

Do you keep the humidity at 50% to 60% when not in shed and then 70% to 80% when in shed?

Winter is coming and the air has dried out, so we've actually had to put a small humidifier in Yzma's room to keep her humidity above 50%. (It kept dropping to the low 40's. We leave her door cracked and now it sits between 59% and 65%.) It's funny, cause when you open the door to the room, it feels like a jungle with all the warmth and humidity! I expect to hear tropical birds and jaguars, hahahaha.