I keep mine at about 90-92 during the day, and around 74 to 76 at night. But the parameters you listed are the ones in my book. 53% humidity is good. It's hard to keep humidity up in a BP tank sometimes with the high heat, I cover most of my tank with a piece of glass, which usually does the trick.
The 2 footer...is he big enough to take rats yet? Mine is not quite girthy enough, maybe small rats, but not regular sized rats. I am still feeding mice.
Yours is already feeding OK, right? Very important!
For the undertank pad, make sure you have it on a thermostat. Even though I think they say they dont' get above 115 degrees, that's still pretty hot. Make sure you've raised the tank a bit to vent the heat a little. I also have a UTH, and I have a thermostat set to 90...with the substrate and carpet over it, it means a surface temp of about 80 on one side of the tank.
Hope this helps.