LOL Lori... don't mince words or anything, OMG ROTFL. I don't think 1.1 is so bad (at least had it been a +12). I think he'd be fine on 1.2, but Robin, I understand your hesitancy to go for some nice mid-level greens if you can't monitor. I'd call it cautious.
The difference I see is more in the later shot vs. earlier. +13 will probably have a little less oomph than it would at +12, so you may find the morning # a bit higher, but don't let that throw you off. With Bix on a +13 shot I often would raise by 0.1 to compensate for the reduced overlap.
The +11 is debatable whether it makes any difference in dose. For Bix on a +10 I would reduce the dose by 0.1 or 0.2, but on a +11 I would probably stick with the same dose. Which equates to 0.8 for Harley on that PS, since I would have shot 1u at a +12, but makes sense to pare back a hair on a +11 with a lower PS.
The bigger benefit of having shot earlier, at the +11, would be to keep him steadier in lower #s. Now you have the rise and drop again, and a high enough PS and lost overlap that he'll spend a few hours tonight in higher #s, which the earlier shot would probably have avoided. Not a big deal since his #s still aren't too bad, but that's the biggest difference I see in picking whether to shoot sooner or later (once over 150).
As far as the "longer ride" question, what I've learned with Bix is that you generally get better results if you just go ahead with the insulin once they break 150. That's high enough that it's taxing their pancreas to bring #s down from there, and the insulin is helping them to heal. PZI has a reputation for dramatic "poop-out", where they'll just zoom a lot once it wears off. Sometimes they fake you out with a good +12 or even +13, but then an hour later it can be skyhigh. That's one reason to shoot a decent dose on a 150 with PZI - by the time the insulin kicks in, they are probably well above that level, so it's not as scary as it may seem when you are looking just at the PS.
I certainly found it tempting with Bix to reduce doses to "see if his pancreas will do the rest!", but it never helped. So now I've shifted that thinking, and in most cases I think it's better to just give the insulin and not worry about the sputtering pancreas - if/when it's ready to take over, it will.
If it's much before +12 it's good to do a rising # test to be sure they are headed back up - if they are, then for the most part, with PZI at a dose like this, you can figure it's only going up further. If he gets to a 0.2 dose that might change, but the dose is still high enough I think it means his pancreas isn't ready to go it alone just yet. But I think that may be coming, paws crossed! :mrgreen: