Thank you both for your help during all this weirdness.
He WAS doing better on a lower dose, Robin! If it helps, I think what changed in the summer was I started incorporating some canned food that I *thought* was low carb, when I actually didn't know. I had gotten complacent and thought that if I read the label and it said grain free it would be ok. I never did fimd out what the carbs were in that food, but I bet it was high. Couldn't find it on food chart, later.... Holistic Select grain free Turkey Pate and Chicken Pate. Has heavy gravy around the pate... Which I didn't know enough to be aware of. No longer in the rotation, as of end of October (his fructosamine had gone up!)
So, I would say that he IS sensitive to dose, in my opinion. I have nothing to compare to, but I know he has gotten hypo on 2u as well (in past history). That's how we got down to 1.2 and even 1u for awhile.... I'm learning recently that I think the carbs in his meal need to be just right, too. I am feeding lower carb than ever after finding this group, just a couple weeks ago.
Gotta go now, will probably start a new thread with the AMPS tomorrow. I would lay a lot of money on him being high in the middle of the night.... But I *will*check. The curve will have to be Sunday but I may be able to check a few times tomorrow too. THANKS AGAIN!