Thanks everyone!
Maybe I should fill you all in a bit on myself and my experience:
*First joined FDMB in 2006 when my Fletcher, who was my heart and soul cat, was diagnosed.
*Struggled for months trying to get a response to the insulin, and eventually Fletcher was diagnosed as having acromegaly-- I think he was the 4th or 5th on this site to be an acrocat and is one of the few that could go on and off insulin (thank goodness because having to give up to 100 units a day was expensive! lol)
*Decided I really liked having "special needs" kitties, so adopted Gabi when she was about 20+ years old with CRF, completely deaf (she knew sign language though!) and had grand mal seizures
*Adopted Casey through this board, and he has been a diet controlled FD since I got him
*Then I adopted my diva, Greta, who had diabetes insipidus
*I adopted Rex, who had untreatable hyperT (treatment sent him into liver failure)
*My vet called me about a kitty who had been brought in and was clinically dead... but she wanted to give him a chance and so after he was with her for 3 months, Robbie came home with me. He was also diabetic and, of course, not a "typical" FD... but survived a 21 hour hypo and never would respond to Levemir with any predictability
*My vet called me again about Tiko, whose "owners" (they weren't FAMILY) wanted him put to sleep because they didn't want to treat his FD.
*Had Tiko for 2 days before he had a dental... then had an asthma attack the following day and ended up in the ER for 3 days and back with my vet for another day for DKA. (He became my $5000+ cat but luckily Diabetic Cats In Need helped with the cost and my vet treated him for free)
*Tiko had another dental 6 months later (his mouth was horrible) and he went DKA again.
*About a year ago, Tiko went in for yet another dental and had all but 2 teeth pulled... and went into DKA again. Amazingly, he was OTJ at the time and continued to stay that way despite the DKA
*Tiko can only remain at the vet's for 2 days before he starts to shut down (despite me visiting daily and giving him clothes I've slept in) so he comes home sooner than most kitties can/should
*Tiko needed insulin a few months ago, so we restarted Lantus but weren't getting any response so decided to try Prozinc
*And here we are!