Where to place thermostat probe in back heat rack?

[BHReptiles]

Thank you
I'm getting a new mojave girl and a new butter girl and I want everything to be perfect for them.

Congrats on your new additions! Working towards BELs?

I built my own rack in August and the problem I ran into was that the wiring on one of my pieces of flexwatt wasn't completing the circuit so it wasn't turning on. So double checking temps not only ensures that it's on and heating...but also that it's not overheating (but...assuming you have a pretty good thermostat, it shouldn't be a problem)