I plan on doing my first brisket on the WSM using high heat, but i'm not sure how to cook it. Most of the forum searches talk about 4hrs for a full packer. My flat is 7lbs. Should I plan for a 4 hour cook? Right now my plan is to use a simple rub, use minon method start with no water in the pan to aim for 325-350 degrees, cook to internal temp of 160, foil for one hour and then begin testing for tenderness every 30 min. Does this sound right??? Im looking for a time frame to help plan the dinner. Any and all suggestions welcome.