I wonder if other people have any problem with regulating the temperature using a UTH pad with thermostats and Repti Chips as the substrate. I get different readings Laser thermometer ranging from 80 to 92 degrees over the heat pads in goth setups and if I take it of the glass it is 108 degrees. the depth of and size of the substrate chips makes a big difference, I was wondering if I use a reptile mat under hide area with out any substrate it would be better for more consistent temperature?