I was looking out for you and wondered how high she would be, well it seems your little Calico has a flare for the dramatic.
What you are seeing here is likely the start of a bounce, this results from the liver 'panicking' because Lily dropped lower than she has been used to in a while, so her liver worries that this is dangerous and starts dumping glucose into the bloodstream, resulting in high BG levels, this can last upto 6 cycles, but may clear sooner.
Hard as it is we ignore the bounces and base the dosing on the nadirs (or the lows) she has on non bounce cycles.
As you are following SLGS you will hold this dose (unless she earns another reduction, by dropping below 90 on the human meter) for a week, on day 7 you need to run a curve and look at the data you have to make a decision on whether you hold the dose or have to go back up again, it's not unusual to have to go up and down with the dose.
If you can get midcycle tests on a regular basis, both in the am and the pm cycles this can be extremely helpful when it comes to making a decision about dose, especially with a bouncy kitty.
By midcycle I mean anytime between +1 and +11, it doesn't have to be at +6. Some folk will grab a quick test before they leave for work, or if they're home well before PMPS they'll grab a test just as they walk through the door. Getting a before bed test is also a very good habit to get into. Obviously you'll just need to work around your schedule, but that extra data will be sooooo useful.
One other thing about the ss you haven't put the dose in last nights pmps slot.
Checked again and still said HIGH. So now I know why pet meters are handy in cases of too low or too high of a blood sugar.
Lily's AlphaTrak2 said 693, gave her 1.25 units as advised.
True you get a reading but the way I always saw it it high was high, didn't matter if it was 605 or 665
That said it's good to have a back up to confirm that it's not just the meter gone wonky.

particularly when there is a big jump from the last test be it a large increase or large drop.