If the hides are not snug fitting he might not feel secure in them. I know some BPs are more out and about than others but both of mine basically spend all of their time in their hides except at night close to feeding day. When I got my pewter she was out during the day and roaming around but I think it was because she was trying to find a way out, it was foreign to her (she was in a tub originally, and I have her in a glass terrarium). How long have you had your BP? Also what are your temps and what do you use for heat?