Carol, if you get a chance, take a look at Squallie's SS, you'll see all the times lately he's had high numbers but at the next Pre-Shot, is too low to shoot, or only just over the edge of where I feel safe giving him his shot. You can see the mistake I made today when I gave him 1 unit in the morning after he tested so high, when you look at the
really low numbers he had the rest of the day. Then he was too low to shoot tonight (again), but will probably "bounce," so he'll be high again tomorrow AM. I should have held his morning dose today at 0.5U. It's hard, but holding at a lower dose till you ride out the bounce is sometimes the only answer.
Don't feel defeated, you are helping him, it just takes time and patience. You are a good Cat Mom, and you're doing a great job with Tigger!