More heating questions! Baby ball

Ok so I heat my ball pythons basking side with a UTH and I spray down his cage once in awhile to get humidity up. I put my thermometer probe above the glass where the uth is and it was reading around 110-115 degrees. I went and bought a rheostat from the place I bought my snake and turned down the heating pad to the lowest setting on the heating pad. Now the thermometer is showing its around 93-95. Is that going to be ok for his basking spot? The thermometer is below some substrate. This is where my snakes favorite hide is at and he spends a lot of his time there. Just want to make sure he's going to be healthy. Thanks for any advice.

Replace the rheostat ASAP with a THERMOSTAT. This one is a great buy for the price, I have two:
http://www.amazon.com/Hydrofarm-MTPR...dp/B000NZZG3S/

So I'm guessing its too hot still??? It's at like 95 above the glass but I'm sure it's only like 82-85 where he's laying at. I just bought the rheostat because that's what the guy told me to get. Lmao...