once my newest 2 just settled in they never leave their hides. Ever. if they do its late at night for a drink then right back in. BP's hide, its in their nature to be hidden 99.9% of the time, and a great sign if they aren't attempting to leave their spots.
I told you on your other post about baths that your BP will not be out most of the time, in fact at least 3 other members did too.