In Canada, the Ziwipeak venison I've been feeding my civie just went up to $4.99 a can.
I remember you had mentioned talking to your vet about Levemir. I'm mentioning it because you talked about him running away from you at shot time. Some kitties find Lantus stings as they get to higher doses. The downside with switching to Lev is that you start at a lower dose but will have to be prepared to fast track up again. A switch could still be a good thing if it is stinging Doodles.
If you aren't thinking R until he gets to 5 units, you can probably wait before you purchase it. I've seen enough scary condos (even one is too many) where people picked the wrong vial of insulin out of the fridge.


I've most often seen R started for ketones/DKA (like Bubba) or high dose cats, though I've also used it to knock off bounces. I'm a strong believer in getting to the right L dose as quickly as you safely can. If you add R in to the mix now, it would slow down how fast you increase the L. I know the vet wanted you to hold the last dose for the antibiotic to work, but the danger with holding a dose too long is letting glucose toxicity settle in.
To respond to Marje's comment about IAA/acro testing. It can't hurt to add it to the next blood work you have done. We have one member here whose acrokitty's good dose is 4 units BID. Each acrokitty looks very different. Unfortunately Marilyn lost Polly's original SS, but she was diagnosed diabetic when Polly went in for blood work for a dental. The more Marilyn increased, the more Polly stayed flat. She was called FlatPollyYellowPolly for the longest time. Neko was a much more, umm, colourful SS.

She loves the rainbow. When Neko's acro tumor started revving up again in late last July, it was like someone turned on a switch and I had to race up dose in a kitty that had been relative well regulated. I felt like I was chasing a moving target. I'd get good numbers back for a few days, then off we'd go on the chase again.