Well, I guess I qualify as " hot weather chicken people" and I have a bunch of black copper Marans. The roosters seem to struggle a bit more than the hens, and I keep a close eye on them. Mine like to dig holes in the muddy areas and wallow in it like pigs, so they usually look like ****, but they look happy about it. Haven't lost any yet this season.
I want to see some pictures of this....