Yes, the UTH is on thermostat, and there is a small cave style hide over it (and about 2in of coco husk/cypress mulch mix). Outside of the hide, on the hot side, the surface temp is 89, with a tiny hotspot of 91 directly under the lamp. Using a timer to run 12/12 daylight/nightlight cycle, and maintain temps (exo terra 36/18/12). The half log was really just meant as filler since the snake is only around 24in, 210g, right now, I wanted to try to crowd the tank a little. There is also a cave type hide on the cool side, where surface temps get down to 76 at the lowest point in the back corner, but this one seems to only get used as a playground at night, then it's back to the warm side in the morning.
Ultimately, I realize that I went the wrong direction buying this tank to begin with, I was looking for aesthetics more than environment, and I am seriously considering putting together a tub and selling the exo terra off, but for the moment I am just trying to ensure a clean shed.
Sorry, forgot to do a quoted reply, haven't been in any forums for a few years...