My cool side probe is placed on top of the bedding but not beneath it. My hot side probe is about half way down the side of the tank(i know they are supposed to be placed under the substrate but did not want to place it there at this time because it was kind of close to where he was resting and didn't want to upset him any further.) I had my thermostat probe under the substrate inside the hot hide directly on top of the uth. I had the therm. set to 89-91. I also have one of those cheap non digital thermostats for humidity and heat. It seems to work pretty accurately.. when i had my heat pad on, when my thermostat was working it read 90F but the cool side did not get any warmer. Could I be needing a lower watt bulb for the warm side as well? And i keep my humidity at 50-60 sometimes 70. I use a reptifogger for humidity. If he's not to cold than what could his stress be caused by? Im going to try feeding him a small mouse tonight. I will post pictures as soon as i download the app.