I need to stuff a 18.5 brisket in my 18.5 WSM, generally I've used a 22.5 kettle for larger cuts and done the HH method with good success, my buddy bought the brisket It's a very nice packer, I'd like to cook it in the WSM between HH and LnS whats is largest brisket some of you members have stuffed into a 18.5?