I have a bunch of friends coming over for Halloween and need to cook six slabs of baby backs. I've never done more than 3 slabs in the past and that usually fills the egg. When I do 3 slabs, I cut them in half. I put three on the main grate and the other 3 on a raised grate.What should I do for 6? Is my only option to cook 3 at a time, then wrap them in foil....towels and place them in a cooler until people come over?Thanks for your advice in advance.STL Scott