Where are you thinking there might be a bounce? Not sure I followed. After her blues yesterday she got a nice yellow PMPS, so no bounce there.
It looks a lot to me like a lot of kitties are quick to resist ProZinc, but I don't know if that is a safe conclusion. It looks to me like her body is getting ahead of the dose. Yesterday you got close to a 60% drop so that looked at least somewhat promising, but today only about 30%. It's like her body is laughing at the insulin.
I'd probably give it another day and see what happens. I'm certainly finding it frustrating watching, I can only imagine how frustrating you must be finding it!!! I mean ... she was regulated!!!! Wat up Thumper?!?!?!?!
confused_cat