I recently upgraded my Boa's cage to an Animal Plastics T8. I got a VE RPH to heat it. My surface temps on the cage floor and under the hide for the warm side don't seem to go above 85f, but directly under the panel I have a thermometer and it reads 88f. Is that too hot of an air temp for her? Also, she refused to use a UTH. She doesn't like being under a hide(they are all appropriate sized hides), so I've found UTH's to be pretty useless fo her. The only "hide" she likes is a cork log I got her and she pokes her head out the top like a total goof. It's a full log though so a UTH wouldn't warm her up in it.
I have the same problem with my BP's new enclosure, but she is bigger than my baby Boa. So her hides are bigger too. Ground temps and under the hide are too low, but on top of the hide it's around 94-96f. Air temp is only 87f directly under that panel.
I have the probe placed right under the heat panel like VE instructs you to do (with the clip you screw on to hold the probe in place 2-3 inches beneath the panel).
So how do you guys get surface temps where you need them, while maintaining air temps that aren't too hot?