Ah, contingency planning. Both Janet and I are on the east coast. I think I have an earlier bedtime than Janet does.
Nico is working his way back down the dosing scale.
I don't think you have enough data to judge how Nico would do if you shot the full dose when he is in the low blue range. Yes, using MPM dosing method, you can still technically give your cat the full shot as long as the BG is >50 IF you are around to monitor and guide with food more intensively AND you know how low a particular dose takes him. When you don't have that capability for monitoring, than you need to more slowly work your way down to a lower and lower pre-shot in order to be giving the full dose, by striving for lower and lower pre-shots where you give Nico his full dose of insulin.
For now, I think you want him to be >150 at pre-shot to give him his full dose. As you gain more data on how Nico is doing on a particular dose, you can lower that guideline to 140, then 130, then lower.
It was much easier when Nico was really high, BG wise. Now, it takes a bit more thought to decide what you want to do. So now is the time to restudy those
Sticky PROZINC DOSING METHODS and make sure you know what to do if no one is able to get back to you in time. "Better too high for a cycle, than too low." Too low would be <50 mg/dL.