Presumably if it's an auto-immune condition like type-1 LADA patients will ultimately be put on insulin because their own insulin-producing cells no longer work. You say that LADA patients experience 'random highs and lows',-as a type-1 patient treated for 14 years on 'human' synthetic insulin, and 4 1/2 on Lantus, I certainly had many random highs and lows. I remember asking my consultant whether my diabetes would ever be easy to control, she told me it would prob always be brittle, and I accepted it. When I was having erratic, unpredictable control on Lantus I was told, by the same consultant, that it did not matter that my blood sugars were fluctuating between 2 and 15 and I accepted it. We trust our doctors don't we?
It was my own decision to change to animal insulin last May, after seeking advice. My control since has been predictable, consistent and I am able to keep my BS below 8 most of the time, bar the occasonal hic-cup!
There are many people, some of them on this forum reporting similar probs with BS control on synthetic, particularly analogue, insulins.
My point is that if LADA patients are having these problems with random highs and lows, there's a possibility that these could be caused by the insulin itself.
Just a thought.
Jus