Charlotte is damn near an SC city the same way Memphis is damn near a Mississippi city. We know that it's "in" NC...
Plenty of relocated SCers in Charlotte, plenty of SCers commute to Charlotte for work. You run across an SCer as much as anyone else in Charlotte and people who are actually native Charlotteans, many have SC relatives and ties...
NC and SC aren't "the same" but there is plenty of cultural interchange, Fayetteville is another city in NC with a lot of ties to SC, Wilmington too. And if you in any of them border counties you see muhfukkas from the other Carolina...
And no, I defined in my OP what I meant. Carolina means both Carolinas...