butt over brisket

Here's my plan, please criticize as I've never done this combo before. Preface- I have done numerous pork shoulders and am very comfortable with them. WSM - 18.5 inch set up to run at 250 all day long. Top grate - Bone in pork butt (aiming for the 6-8 lb range) Bottom grate - Costco Brisket...