Dutch's beans are great!  I made them for the first time last week, for a mixed crowd, so I left the japs out.  Left the dry mustard in, and they were the perfect heat for the group.  If I were making them for me only, I'd keep the japs in, but the kids and MIL don't like the heat. 
Next time I do them (whenever I fire up the smoker again, lol) I'm going to sub the ketchup for BBQ sauce, either 1/2 and 1/2 or all of it.  The beans are great though.  I was a little hesitant with the pineapple in the beans, but they were wonderful!  If I want a little more sweetness, I'm thinking I may try pouring that syrup they come in in their with them. 
Anyways, take Dutch's idea, modify it to your liking, and then share with us!