I'm going to be cooking 2 pork butts on my 18.5 and haven't done 2 items at once before. Would you recommend rotating them at about the half point mark?
If they don't fit, don't worry about moving one from one rack to the other. They will still finish nearly if not exactly the same time and what you will have is two different flavors (only a slight difference) which is what BBQ is all about