Sounds like your humidity is good. Your ambient and cool temps could come down just a bit - ambient around 80, and cool/warm sides around 79-83/88-93. You'll see a range of recommendations, but they're all right around there, give or take a couple of degrees. Have you checked out the caresheet? Here's the link:
http://ball-pythons.net/forums/showt...ius)-Caresheet
And you'll find lots of good info here:
http://ball-pythons.net/forums/showt...Husbandry-FAQs
It's also very important that your UTH is on a thermostat so it doesn't heat up unregulated. Lots of threads available on which ones people recommend. I use Herpstats with Hydrofarms as backup.
And lastly....does little guy have a couple of hides so he can feel secure? If so, he's just a few degrees away from bp heaven.
I only started keeping bps about 3 months ago and would have been lost without this site. Glad you found it!
Oh, one more thing: post pictures, we want to see him!