Another online FD person on FaceBook Feline Acro page (Gayle) has stated to me that Prozinc is not a typical insulin given to acros. I did some research on it and a medical study showed Prozinc lasts about 9 hrs while Glargine lasts ~11+ and Levemir lasts ~13 hrs. I pointed this out to my vet a few weeks ago and she was not aware that was the case between these 3 insulins. Cleo is now up to 9U bid and she's been maxing in 400's and nadiring down in 300's. Previously she was still up in 500's and even hit 600 a week ago. I'm not seeing any adverse reactions to the Pz, but she still has the wobbly back legs.