Well, I was going to have a smoked brisket, some flap steak, burgers and brats for our cookout on Sunday. . .but, and impromptu trip to Peoria Packing changed the menu

. I bought pork butt for making Italian sausage (which I'll do Saturday), bought some brats just to try them, got the brisket, but somehow a few slabs of spare ribs ended up in a bag and in my cart. With only 15 people coming and my BIL also bringing hamburgers, I can't imagine how I'd need the flap! It'll have to wait.
The problem is that I never cook spare ribs. Well, not never, as I did it once, but close to never!
So, any suggestions on cooking it? I will have access to two grills, so I can do the brisket on one and the ribs on another if I need different temps. I don't have a smoker or charcoal grill, so will have to make do with gas.
I seem to recall something about cutting off that flap of meat above the bones. Is there anything that can be done with that?