There is also a temperature gradient from front to back in the tubs. I wasn't looking to replace the front to back gradient. My issue is that the only place where there is a true hot spot (around 93) is under the paper. Above the paper the gradient is from 82 to 78. Which is fine just not a "hot spot"

I was wondering if they feel the need for more heat (like when they are digesting) are they intelligent enough to go under the paper? Therefore I guess my overall question is: are they getting their heat needs fulfilled?

Sorry for the lengthy question