That totally makes sense and is what I am hoping as well. The night I finished his new enclosure (damn did I put a lot of work into it), I watched him with only a night heat bulb on and he was out exploring, which was very promising - I hoped he had felt like the grips of the bin had been let loose. But once he found the hide he went straight for it and has been nestled in there ever since. I haven't noticed any true signs that he has moved about since, i.e. debris in water bowl, small movement of vines, etc. The important thing to me is that he is at the right temps having had switched from an UTH in his large bin to top heat now.

I cut a piece out of the PVC enclosure's top before putting him in there and mounted a 10gal screen top to it with wing nuts to be able to use lamps externally and not have the heat source directly inside the enclosure. Yesterday I did an experiment and mounted my XL UTH to that piece and turned the thermostat up to 105 or whatever it goes to to see if A: it melted the PVC, and B: how hot it was able to get it. To my surprise, it only was able to get it to around 90*, which I have heard is a bit low for Darwins. So that is the battle I face. Use top heat and lose humidity in that direct area, or try to use heat tape (which I just ordered from Pangea), which at its max safe level of >105, I believe will produce the same temp results as the UTH test I did yesterday.

I never thought it would be so complicated to get the heat temps right, but what do you all recommend as far as where the heat comes from for carpets? What's scary is the temp above his hide under the heat lamp/s is hotter than the 92-95* right by his hide. Is that dangerous? I assume the same would go for a RHP, would it not.

Thanks for all your responses so far as I learn the ropes here - much appreciated!