I got home for work, and the temps were 79.2 and 91.7 with 43% humidity. I tried the wet towel again, spreading it out more over the open area. Now getting 79.3 and 91.9 with 52%. I'm going to try to move the water bowl more over the spot where the UTH is, and see what that does. I'll keep trying different things, and if needed, I'll get a diff substrate on Friday when I am off work.