I live in one of the bigger and liberal South Carolina cities and I would say there are not many sly guys here. As a matter of fact, I try to tell my girlfriend that a lot of guys go sly but she insists that it isn't true and that most guys just work with what they have. I think this is her perception because she was raised in SC, so that is all she knows. I am originally from FL and I see sly guys all the time there.
I think it has to do with SC's conservative political and cultural climate where *most* people are old fashioned and think that shaving your head is extreme.