The heat source is the RHP on top. No heat source on the bottom. Where the probe is now is theoretically the absolute coolest spot in the enclure (not including in the hide). I thought I read it shouldn't be too close to the floor. But, the probe is set up so I can shift it a bit, including pulling it lower to the floor. Going to play with that. Thank you for the info.
Getting a little concerned with humidity using paper towels now. I'll see what the readings are tomorrow, and then re-evaluate for humidity.