NO! NO! NO! All wrong. NO bbq sauce!!! Go to LA CAJA CHINA and click on the video link next to where it says "Throwdown With Bobby Flay." Bobby Flay and Robert Guerra have a throwdown using La Caja China. And guess what each of them are cooking? PORK SHOULDER. You definitely need to watch this video on that site. However, I warn you. After watching how the pork shoulder is cooked in La Caja China, and the incredible results, you will feel incredibly inadequate.
BTW, I told my wife I will be buying her a La Caja China after she passes her X-Ray license exam. She came within three points of passing last time so I think she will do it this time. Oh, and you can also convert La Caja China into a smoker with a kit they sell on their site.
Settle down, settle down. I don't think you know what barbecue sauce in North Carolina means. What it amounts to is vinegar and a a variety of chile powders. There is no tomato or sugar involved; it is a watery, spicy delicious seasoning.
I just finished a sandwich, with cole slaw on top. I had a lot of these sandwiches when I lived in North Carolina and this one would stand up against the best of them.