SweetHeatBBQnSC
is One Chatty Farker
^^^ mix this with a sweeter commercial sauce and it's really good for bbq chicken.
As far as vinegar based for pork homemade is always the best, but I also realize I live in SC and everyone has their own sauce recipe. I can't find where this is sold online, but this is a link to an ebay sell. This price is expensive for this sauce. It is sold locally for around $4 per bottle. However it is one of the best vinegar sauces IMO.
https://www.ebay.com/itm/2-18-Oz-Bottles-Prosser-s-Williamsburg-Style-BBQ-Sauce-/184485558562