Hi Susan!
Just a quick observation first...you have the exact same thing in the "remarks" part of your spreadsheet for yesterday and today. Also, on the days Squirt was at the vet, did they not test at all? I understand the "kennel workers" couldn't test, but wasn't there a vet or vet tech there at least once a day that could test?
Instead of skipping those days on your spreadsheet, it'd be clearer if you went ahead and put those dates in, and just put "No tests due to boarding" in the Remarks
I think the .25 was probably a good idea. Squirt's numbers are still running a little too high to go without, so we just need to find a dose that you can safely give every 12 hours. I know those doses "between the lines" are tough to measure, but just do your best to be consistent. It's not so important that it's exactly .25 (or .2 or .3)...it's that whatever you decide is .25 is as close to the same dose each time as possible. A lot of us will fill a used syringe with colored water to what we want our dose to be, and then compare it to the new syringe with the insulin in it.
When you do shoot lower numbers, usually it produces a nice flat curve. "Shoot Low to Stay Low" is one of our favorite sayings around here!
When you do shoot lower numbers, if you can't be around to test, leave some food down. Most cats get hungry when their BG goes low, so leaving food down that she can eat later is always a good idea. If you add a little water, it'll help keep it from drying out too.
If you're at work, do you have anyone who can check in on Squirt on days like this? A neighbor or good friend?