Re: 12/12 AMPS 477
Wow! He really swings, doesn't he?
I know its really low dosing, and the duration seems short for him (steep curves often) so I'm wondering if you'd ever thought of any of the following to try for smoother sailing (these are ideas, not mandates!):
1) getting a Humulin R compounded to a lower concentration (maybe U-50 or U-25) so you could give him 0.05 - 0.25 units when he was really high (its hard to eyeball in a u-100 syringe otherwise)
2) attempting split doses (it'd be hard with such small amounts, though not impossible) - maybe review how Momma of Muse is doing with Musette
3) TID (every 8 hours dosing) - again it'd be tiny doses
4) a switch to Levemir - still tiny, but more overlap, so maybe smoother curves - perhaps someone could let you try some before committing
The only other thing I can think of - if you rotate varieties of cat food, with slightly differing carb values, maybe he's really, really, carb sensitive and even a 1% change affects his glucose. Spitzer reacts like that - you can see it on a recent test 4 days ago.