I've been looking this up for a while but can't seen to come to a conclusion with probe placement.

A lot of people say it should be sandwiched between the heat mat and the outside bottom of Enclosure. My problem with this is that the probe is kind of thick so the uth would be uneven and wouldn't give consistant readings and I've seen NO ONE acknowledge this. Or maybe I just missed it.

Another way I've seen people go about it, was not even having the uth touch the bottom of the tub at all. The uth is flat on a surface but they had the tub sitting maybe less than an inch above the uth. So is this a good option and where would the probe go with this set up?

Then there's the probe on the inside which people seem to hate, but would seems more convient for people having problems with the sandwich method. Is it really that bad?

I just could never come to a clean conclusion giving the different options and the setbacks. I'm hoping someone could help me smoothen this out a bit. Any help is appreciated!

Btw, I'm using a single a single tub with a lid. No rack whatsoever.

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