We no longer use ProZinc and are now in the TR group, but I saw your note and thought I'd respond while you're waiting for others. I can't say it enough how important home testing is. Without it, you have no way of knowing if your kitty is too high or too low. My vet wasn't in favor of much, if anything, we thought best for Hershey. You have to do what you feel is best for your baby. Hershey has thrown us some pretty low numbers and it could've been really bad if we hadn't home tested and caught them. If you look at his SS, you'll see he was (31) at PM shot time 2/24. Whoa! I don't even want to think about what might've happened if we had shot into that! And, our vet wanted us to start no lower than 1 unit and maybe closer to 2 units. Again, his SS shows he was only briefly over 1 unit and is now trying a reduction to .3u.
This seems like a lot to learn, but there are some super people here who'll hold your hand through the whole process. Hershey was diagnosed 11/11, started ProZinc 1/13/12 and Levemir 6/13/12, so we are definitely still learning, too! Honestly, when we started I didn't think I could EVER test Hershey, but now it's pretty much second nature.
Best wishes to you -
Libby (& Hershey, too!)