I asked the rescue ladies if there was a chance he had some Maine Coon in him because I thought he had that look. The one who fostered him said his mother is a DSH tabby but she wasn't sure about the dad. He's pretty little though so I think it's doubtful. I've seen Maine Coon kittens and their paws are huge--along with the rest of them. New boy's paws seem to be normal kitten size.

And I've had a little experience with HCM as well. My last boy, Basil, had it and was on medication and had a cardiologist. He lived a good three years after it was diagnosed but the end wasn't good. Basil was a DLH like this guy and a lot of people *thought* he was at least a Maine Coon mix but he wasn't. His mom was a B&W DSH and dad was a DLH tabby.

I'm really leaning towards Simon as well. I like the name Taddeo but it doesn't roll off the tongue quite like Simon does plus he's mouthy like Simon Cowell. When I called him Simon, he answered.