Hi all - I read in a few threads and in the mods thread about using a cast iron skillet instead of the stock chip pan. I have a Masterbuilt that has the chip pan with the vents and have the chips catch fire and flare up so thought about trying the cast iron skillet. The question is - I noticed in a couple of pics a wire rack that is used to elevate the skillet above the burner - where do you find something like that? Thanks!!