I've looked at the UTH setup diagram, but I want to know if you remove the backing (covering the sticky side) or if you can leave the non-stick protector on when using foil tape (I know the UTH goes on the outside of the enclosure). Also, I leave at least an inch of cypress bedding, will I probably need to thin the level? It's an AP cage that so far I've been controlling so far with CHE's but with winter temperatures I'd like to use a UTH for the first time so I can get his hot hide temperatures to the optimal range without making the top of his hide or ambient too hot.