Was going to cook a 16lb brisket hot and fast yesterday. Figured 4-4 1/2 hours I'd be done. Wrong!!! The meat was so big I used my rib rack in the middle of the top grate to support the beast.The temps on the WSM were between 320-350. Well, after about 4 hours of still trying to get the internal temp to where I could foil I finally realized that the rib rack may be creating an insulating space between the grate and the heat. Took the grate out and the internal temps started to climb. Total cooking time almost 7 hours.In retrospect I think I should have just forced the meat in there maybe covered the edges so they didn't burn and go from there. Anybody else done a hot and fast cook with a large piece of meat?