Okay, so I was pretty sure that my rack was doing perfect on temps, but even though I now have a herpstat, I am still,experiencing some issues. The probe is on the middle level of the rack, on the heat tape. The middle and bottom tubs are occupied, and the top empty. I assumed that my temperatures were fine, the snakes were thriving, and I temp-gunned the top of the substrate(paper towels) at 90. However, just the other day, I pulled up the hide and temp gunned under the towels, and it hit as high as 97-98 in a spot or two, usually 95 or so. Worried, I checked the bare upper tub, thinking that it would be hotter because it is higher up, and it was only 88 on the hotspot. I decided to do a little test in the top tub. I used the same paper towel layout as the other tubs, then put a hide over them and came back Ina few hours. When I checked on top of the towels, it was about 92. Under them, 95 on average, with a few spots as high as 99. Lastly, I checked the bottom tub, and on top of the towels was 87-89, under, a high of 95. What course of action would you reccomend?