He is an interesting kitty! So, on the mid 250s, 0.5 looks okay at night but not during the day. But you are so right, Yvonne. Just a smidge seems to make a difference. The 175 is a great number today, but that big of a drop is also likely to cause a bounce. Although he will probably prove us wrong and continue on down......
I wish he was consistent enough to try some of the PZI alternatives. Like dosing 3 times a day for a few cycles to keep that preshot down but then he throws you a yellow preshot every so often. (we think about 3 times a day when the insulin doesn't seem to last long enough.). There's dosing 11/13 when one preshot is consistently lower than the other; that doesn't apply. He isn't even a consistent bouncer!
You have tried feeding the low to avoid a jump, right? So when you see a blue that represents quite a drop, give him a little regular low carb in the hopes it will help him surf along awhile.
The other variable that makes it so hard to use his past cycles for dosing is that he could be a late reactor. So we make a change and it takes a few cycles for him to react. Meanwhile we are adjusting..
I do not understand his high preshots (sometimes). His daytime numbers look okay.
How far are you away from the end of the vial? I am thinking he needs the longer flatter cycles of one of the depot insulins. You have tried everything and things that should work, but he just doesn't react the way we would think he should.