i just read through your previous post. i should correct what i said about Juno bouncing - his numbers are all over the place and he *might* be bouncing, but i suspect it's actually as much that Lev needs consistent dosing.
Seems like you're on the right track now.
I hadn't realized that Juno was so difficult to manage. If he's not responding to the low carb treats you've got, perhaps we can help you find something that he will like. Punkin loved boiled chicken - just a tiny cube of it was a great motivator.
I do want to encourage you that yes, it is a little difficult to follow the protocol to get a diabetic cat regulated, and some cats are definitely easier than others, but for the ones that make it into remission, their people all say it was worth it. i read that you travel and don't have someone to take care of him, which adds to the challenge. i wonder if someone could begin to "woo" him and if he'd eventually accept them as a substitute. we had a vet tech come to take care of punkin when we needed to be gone. we do have some cats that won't allow testing, but a cat sitter can give the shot.