I don’t think you will find an exacting and precise answer to your question here, because the truth is, nobody knows, least of all vets. The data gathered here is more accurate as far as what is a “normal” bg for a cat because we home test and many have tested their civvies. When vets test cats, they are typically stressed and the numbers skew higher than they would at home. The problem is...
The vast majority of data collected here is with human meters. The TR protocol and SLGS were developed using human meters. How does that data translate to a pet meter? Other than 68 being the cutoff for AT and 50 being the cutoff for human meters, it doesn’t. It’s a fact that people can and do use pet meters here, but this is one of the areas where you are at a disadvantage using a pet meter because it is uncommon enough (mostly because it’s too expensive) that there is a minority of AT data by comparison.
Here’s a link to an unconventional OTJ cat that used an AT if you want a comparison. I can’t think of any other OTJ cats that used AT the whole time since I’ve been here, maybe others know of a few you could look at.
https://docs.google.com/spreadsheets/d/1wx58nvzn4CcTwZt6C0SJPR_K82boATBRKHU2C4Khbak
If you want my two cents, the fact that you are hesitating and questioning probably says you’re in a grey area. If it were me, I’d rather put in a bit of extra time using insulin and seeing if I could at least bring the
whole range down to blue before calling it a remission. You could also call it OTJ and monitor him more closely than someone who had lower numbers going in to remission, decide what’s unacceptable now so you don’t wait it out too long before putting him back on insulin. For example, set a rule that any mid cycle number over what he had in his trial or any AMBG over X, what have you.
My reasoning suggesting the former is that it’s a lot of hard work and any extra time you give with the support of insulin could only stand to heal his beta cells further. If it’s close but a little too soon, you could tax them into exhaustion before they even have a chance. It’s a risk I wouldn’t want to take as exciting as OTJ is, it’s still very much on the table, just perhaps a tad further away.
Of course, it’s your call.
Sorry it’s been frustrating with all the other issues clouding things. I can relate to having a cat with multiple issues.
