Still learning after about five months of Egg ownership! Have 80 pounds of butts to cook for pulled pork. I intend to cook "low and slow" around 230 degrees using my BBQ Guru. I have a large that can handle five butts on the raised grid --three on the bottom and two on the top. Well, the first group fits in there and i'm cooking for about two hours and i'm hearing more hissing noises than normal and my dome stat is reading 330. About three hours into the cook, i'm realizing my internal probe is already up to 156. Checked things out and found one of the butts was placed on top of my "Grid Probe". So the dome stat was correct and the Guru was being fed a false reading because it was covered by the meat!! It cooked fast and will be fine mixed with the other butts. This batch cooked in 7 hours and the second batch took 24 hours.