Have you set a "no shoot" number in your mind? That's the one where you'd start with stall/retest, move on to deciding on a very low dose or opt for no shot, depending on your comfort level and/or ability to monitor.
If these PS lows pop up more you might consider lowering the dose so that you get two shootable PSs a day. Another thing to try is taking a break from sliding scale dosing for a couple of days to see if that calms things down. It can work really well but sometimes it's an extra variable that gets things more jumbled up.
My "adjusted shot" number is around 150-250, taking into account what he ate and how much he ate. Unfortunately this morning I had to leave for work and couldn't do the stall and re-test, so opted for NS. We'll probably get off work early, but I can't be for sure, and so I can't even guarantee that I could run home for a mid-day test. (I hate leaving for lunch only to come back to find out I can leave for good for the day.)
Frank got no dry food yesterday, not a single piece. I wonder if that didn't help contribute to this low number. Also, I didn't freeze his food last night, so maybe he ate everything before midnight even rolled around, and then had no food the rest of the night, leading to a low BS.
All I can say for certain is THANK GOD I'm doing PS testing! I can't imagine if I had just given him the full dose of 3.5, or even the 2.5 that the vet thinks I'm giving. I guess I could have done a token dose of like .5, but not being home to check him just made it seem risky. So, he ate breakfast and has his frozen food out for the day, and whatever time I get off work I'll go home to check.
Is it completely unadvisable to give a small dose mid-cycle if numbers are high? I know it would mess up the 12 hour cycle. Maybe this is where I'd like lantus better? Ugh. I feel like I'm just getting the hang of things with prozinc, and I know lantus is a different protocol that I'd have to learn all over again. Things to think about, for sure!