Are both of your hides identical? If not, he could be favoring the other cool side hide. If they are, it's possible that inside the hot hide is too hot for him.

I have a hide over my UTH in all my tubs and in my corn's 20L tank as well. I've never had problems with it: I have a felt sheet over the UTH (.29 cents at Michaels: just in case I have someone burrow under the newspaper so they arn't lying directly on top of the heater on the plastic tub surface) and over that felt piece I have my newspaper/paper towel substrate. The UTH measures in at ~90-92 degrees for me when I use my temp gun directly on the tub surface.

Are you measuring the 95 degree temps on top of the substrate or on the glass surface? If on top of the substrate I would lower it a bit depending on how thick you have your substrate.

And in regards to that question, how are you measuring those 95 degree temps?