Western NC does vinegar too no? It was all the good local stuff around Asheville and East TN when I was in Knoxville. My friend Leah's fam made the best vinegar based sauce, incredible sauce, that was Maryville and they took great pride in it being a regionally appropriate "east Tennessee style sauce"
it was this huge to do with like 30 "secret" ingredients, but motherfucker i'll be damned if I ever find better