Questions about a soaking BP

[Bogertophis]

Her cool side temps range from 78-81f depending on my room temp at the time.

...Temps: With a temp gun her warm side sits at 88-91 depending on if the heat panel kicks on. So I don't think it's that...

So how warm does her home get when both the heat panel kicks on AND your room is on the "warm side"? You might aim for 2* lower in her home, both warm & cool sides, & see if her behavior changes regarding soaking? (in case your temp. readings are a little off & she's a little too warm?)