Hmm.. Weird spot. Check it out (w/ pics)

Good luck. Sounds like you got it under control..

It's not as bad in person as that pic looks (light)
I just wouldn't think the uth would have caused that big of a difference....
I added it bring up belly temp after feeding but maybe it should have been on the same cycle instead of all the time. I should have called my buddy before I put in under there...
It's HOT and humid here in the south and I run my AC wide open and it brings the ambient down in the cage.... so I thought this would be a good idea. Obviously not....
He was basically in a sweat box I guess.... but I checked the floor temp often and it wasn't burn hot or anything...
I will be upgrading my bulb tomorrow to keep ambient up I guess and the small UTH is now on the rear side behind the hide.
No wonder he was pissy the other day.... I'm a bit embarressed over my ranting on that thread.
But it's obvious I have access to a friend who knows his shiz and you guys help.
Anyone else please feel free to jump in!
More advice the better.......

Let's hope this sheds off

One question that I don't see anyone has asked is, how are you regulating the UTH? Do you have it connected to a thermostat/rheostat/dimmer of any kind? I know you said you have digital thermo, but I'm guessing you mean thermometer and not thermostat. Also, do you have a digital thermometer with a probe to measure the surface temp under the hide? While it may not feel too hot to you, it may be too hot for your snake...