Hi Cindy,
I think I would leave the dose alone for another day or two, mostly because of one comment I saw on his SS. Last night, when you saw that 85 at +4, is says you fed him a tbsp of FF with gravy? I understand why you may have done that, in order to get his numbers higher (maybe so you could get some sleep?). But, if you hadn't given him higher carb food at that point, he may have dropped a little more? Like I said, I understand why maybe you didn't want that happening in the middle of the night.
But my point is, it looks like this dose is "working" if he's getting green nadir numbers, and you may not have to up the dose if you find that this dose is working well. You might even see that he may need less insulin if you see lower green numbers in the "middle". If you can continue to get data, especially mid-cycle numbers or one or two "overnight" numbers in the next couple of days, you'll have a better idea what the "next step" should be. His numbers do look very good at this point, I think.
Carl