The sauce and the wood are the keys.

You must use Hickory for the smoke.

The sauce is vinegar based with pepper and other secret spices.

I am sad to say that I don't have a recepe for sauce, I buy mine from Gary's BBQ in China Grove NC. Been eatting pork from there since I could walk.

Their phone number is 704-857-8314, I'm sure they would ship you some.