Thermostat probe placement in my tank?

[KMG]

I know I am very prone to overreact. But that's because I really acknowledge the responsibility I take on when I bring an animal into my care. I know I am the sole keeper who "decides" if the animal thrives or is on the brink of dying off. I take it very seriously. Too seriously at times. But I am the kind of person who rather makes sure everything is perfect beforehand instead of regreting things later I could have done differntly.
I do appreaciate the help. But I have also noticed a certain kind of aversion of vets in the reprile keeping hobby. There seem to be many keepers who don't trust vets and just think they are out for their money. At least I have noticed this more in reptile keepers than say people who own cats and dogs.
So that's why I take it with a grain of salt when people tell me not to go to the vet.

Many vets don't know much about reptiles. That's why. If you have a specialist near you consider yourself lucky as most don't. I'm lucky as I have Gulf Coast in Houston, another I know of way south of Houston and one way way northwest. I don't recall the name of the one south but the NW one is Paws to Claws.

Snakes are just not as common as dogs and cats plus they don't use vet services like them so they don't require vet visits every year. That means vets don't see many in many places. Out of all my snakes only two have seen vets in the past 10 years.