I used one of those cheaper dial hygrometers and thermometers when I first go my BP. That thing always showed my humidity to be around 65%, yet my BP appeared to have papery looking skin and maybe a little dehydrated. I bought one of those ExoTerra digital hygrometers and when i stuck it in the cage it read 32%. After bumping up the humidity, I've had no problems with his appearance and he's shed twice and both times, he shed fully and in one peice. Those dial hygrometers are cheap and I don't trust them.