I've been advised that maybe I should lower his dose from 1.50 to .75. I'll be doing that starting tomorrow, though I still don't think that the issue is too much insulin, but rather too little. Every single time I do as instructed and lower his dosage, his numbers shoot up into the 400s and don't dip below mid 300s. Only as I get closer to his original dose of 2 units do his numbers drop to the 200s and stabilize in that area. I'll try .75 for a few days, but unless I see a positive change in the numbers, I'll be moving him to a dose that's been proven to have a positive effect on the cat. I'm hoping that when I try the .75 either his numbers will stabilize, proving the forum right about the too high dosage, or that if they don't, then my idea that his dose was too low will be considered.