My diabetic cat is no longer with me, but I can help you with these questions. (my info is from 2002, so not really that old)

1. Do you do blood or urine testing? both, Regular blood tests by the vet and urine tests at home to make sure his levels aren't changing unnoticed.

2. Is you cat on pills, insulin, or both? Y.Lee was on insulin shots, twice daily, 12 hours apart.

3. Is your cat on a prescription diet? Yes, he was given Hills prescription w/d.

4. If you have multiple cats, how do you manage?Well, I feed all my cats in carriers, so this was never a problem. You may need to stop free feeding (if you do) and go to regular sceduled feedings. This will be beneficial for the diabetic because he MUST eat in order to give him the insulin, and you can monitor his food better if he is fed on a schedule.

Best of luck with Mobius. He (and you) will be fine once you get your routine set.