I tried Smithfield's packaged pulled pork, which was east North Carolina style; tart with vinegar and a little spicy. The tend to use the whole hog for the meat, so the meat is lighter in color. I'm accustomed to Maryland Bar-B-Q, which doesn't have the tang, so I really didn't care for Smithfield's.
West North Carolina B-B-Q is sweeter and has a tomato base, but they use the darker, fattier pork shoulder meat.