This morning's vet visit confirmed that he's doing much better, and while there are still some questions to be answered in the next month or so, he seems oblivious and pretty happy. Dr. Beth Hagenlocker at The Cat Practice in Marina Del Rey was quite happy with his progress.
The best sign? He was far more feisty and less inclined to be easily put into his carrier this morning than anytime in the recent past. That's progress.