It's useless for Q. We learned that this weekend when TK spilled a bunch on ribs and they were terrible. But you'd hate to waste those jars, I'd be happy to pick them up for you, empty the contents and take them to a recycling center! :roll:
Seriously, do your ribs how you like, then with about 30 minutes left pull em off and baste them. That jelly will give it the perfect sweetness and kick. I would think you could glaze a butt with it if you'd like and then pull it, effectively mixing it in. But sauce would ruin that.