I felt the same way about paper as well, but in the end when I have to clean out the tubs I know they are as clean as they can be as opposed to spot cleaning. Keep in mind we are only talking about 4 snakes today as opposed to many. How I found a sweet spot for my setup. Hope it helps.
I placed the probe on the second shelf in the rack from the top. My rack has 2 rows of heat tape. I do not use the rear row at all.
I set the herpstat to 88.0 and moved on from there in tenths (up or down) until I hit the mark.
I used a temp gun to spot check the temps.
I wanted to keep 1 degree delta from the bottom to the top.
At the top I'm at about 89 and at the bottom at about 88.
They eat just fine, shed perfectly every time, thermoregulate as they see fit and are thriving.
I've had this setup now for 7 years plus.