Hi Sharon (and all), thanks for asking. I was off the forum for a few days, mostly working.
Post SRT +25 weeks
Leo and Little Dude are almost inseparable now. They hang out all the time. We are happy that Leo has regained a kitteh brother. There is a lot of purring going on, lots of co-grooming, and sometimes a little wrestling, and they usually sleep together. They often go into the fenced backyard together and hang out - looking for bugs and mice. It is great, just plain great.
SRT +6 months (almost):
- ambulatory with almost no neuropathy
- still hungry a lot, and still overweight- and he often trots or runs to get food
- stable at 4.5-5.5 Units/dose, less than 1/3 of his pre-SRT doses (18.0 units/dose)
- regular with urine and poop, so no issues there
- skin is recovered from non-cancerous growth removals
- very soft and love-able
His chart is updated, including the graphs on tab 2. He was recently at 7.0-8.0 Units, so he is still coming down in dosage. His body still resists nadirs. If we give him a little more insulin, he tends to nadir at the 12 hour mark. That makes it hard for us to dose him. I'm keeping him safe, and not dosing under BG=200. I suspect Leo may have some pancreatic diabetes. He has never had a true hypo event, although he did get to BG=60 once last year.
Fur regrowth (from Feb 8 to March 4):
His fur is slow to regrow back over the mast cell growth removals. So he still has several velvety soft patches (2 on legs, one on head). We rub them to make the fur grow back.

The lab results were negative for malignancy - YAY!
Neuropathy recovery
He had real bad neuropathy pre-SRT. To the extent that the "big decision" was in play. His neuropathy is almost gone. We sometimes feed on the washing machine.There is:
- 1.5 foot high wood step,
- then another 1.5 feet to the washing machine.
He now has very little trouble getting up there. This week, he voluntarily jumped from a coffee table to the top of the couch (2.0 to 2.5 feet). Not amazing for a 6 month old kitty, but pretty good recovery for Leo. He often gets on a chair and begs at the kitchen table - and 3 months ago, he couldn't do that. If any one is reading this, and your cat has neuropathy, there is hope. Your cat can recover almost completely with proper BG regulation and some B12.
The same 1.5 foot high step/block by the washing machine - blocks the droolers (aka doglets) from poop wrangling. So Leo has to jump over each time to use the litter box. It's good exercise for his hind legs.
We love our fur kids and Leo is still making good progress. We hope he is outside the bell curve of "expected 600 days of extra life after SRT". He is almost 11 years old and I hope he is with us for many more years. A dose of cuteness (picture) is attached.