I’ve only just quickly skimmed through your post so apologies if I’ve misunderstood anything but off the top of my head it looks as though you’re doing an awful lot very well and maybe it just needs a little fine tuning here and there .
A few quick thoughts are ...
The hot spot should be nearer 90 to 92F but no higher imho ...
I’d add some more ‘clutter’ to help it feel ‘even more’ secure .. so more branches and bark pieces ( found in local parks / woodland) ..
I’d suggest you STOP all handling until it’s had about three consecutive feeds .
I’d also consider the hairdryer method of feeding instead of thawing with hot water .. I have two Royals that won’t eat if I thaw in hot water ... I presume that the dipping simply washes off the rat odours but that’s just my theory as they readily accept hairdryer warmed rats everytime .
I’ll send you details of the hairdryer method by PM
Oh and please provide a photo or two of your setup plus details of how you are heating the viv and where the heat sources are placed ..presumably you are using a thermostat to regulate the heat
Good luck ..
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