"Wow, dx'ed type 1 in ICU, bs 672 and a1c of 13.2, aug./08 at 52 years old."
It looks rather more likely to me that you were never a type 1 in the first place. From the start you appear to have been been an insulin-using type 2.
"DKA yes, antibody positive yes, I only use insulin for correction, I go a days, weeks without, yes bs comes down. They want to study me because I only tested positive for 1 GAD not all. I am negative for the others, but had been positive at dx."
Were you officially told you were type 1 or did you presume you were because you used insulin? It sounds like your GAD tests were indicative rather than conclusive.
Nor are you now cured or pre-diabetic; you are now a well-controlled type 2 based on the information you have provided.
Congratulations on your improvement. Whatever the cause, it is something to celebrate :)
Cheers, Alan, T2, Australia
Everything in Moderation - Except laughter