I just bought a thermostat (which I do not like very much) anyway, I am having a hard time getting the temps right for my new adult ball. I don't have him yet and wont until this gets cleared up. I have a temp gun I use to see the temp of the plastic above the UTH and I also have an outdoor thermometer sitting inside the hot hide. Which one should I go by? The temp gun says a really high number and the thermometer says a way lower temp. For example the temp gun may say 110 (which is WAYY too hot) but the thermometer says 91.