I've not done one this way, but just a "heads up" for folks that might try it. WARNING - once you've closed all the vents, do NOT open the KK until you are sure that the coals have gone completely out (dome temp drop of 100F). Then open the top vent for a few moments before you open the lid. Otherwise, you risk setting up a flashback, which is NOT a good thing. You can seriously burn yourself. I did it once when cooking on a friend's BGE, which I was not used to cooking on. Fortunately, I only singed off the hair on my right arm, but there was a nice blue fireball and a big WOOSH!