When it comes to Ball Pythons, I don't think the learning will ever end! Lol, at least sometimes that's what it feels like. It's good to keep an open mind.
I ordered my Thermostats over the internet from www.bigalsonline.com I just got the Repti Temp 500R. It can control two UTHs, I just haven't figured out how to properly do it.
Also, You don't have to remove the sticky tape from the UTH to use it. I have two right now that still have the paper on it, and they're working fine. No fires, temps are fine. I stuck my first one on my glass tank, I was so mad when I found out I didn't have to!