Calves definitely seem like a muscle like no other. My calves up until my thirties were 13 inches. It's like I was walking on pegs. Look like I had polio. But I wasn't really too preoccupied with them. But for some reason in my mid thirties I just became pathologically obsessed with them. I use to even dream about them. It's like something in me snapped. I just tortured them like a maniac. When I think back it's embarrassing how my life for two years just revolved around my calves. I was obviously crying out for therapy.
I got them as high as 17 inches but they seemed to have settled in at a fraction over 16 inches. I don't even train them anymore. Haven't in years. I still do a weekly set of one leg heel raises to warm them up because having heel spurs I stretch them a lot. Calves don't seem to atrophy much when you stop training them. Like I said it been many years, over ten years, since I've trained them seriously but they're still there and it's the only thing, other than my veins, that people comment on.