8 racks of ribs. 7 babys, 1 spare. On a 18.5" WSM. It was my first minion too. Its chugging at 245-250 almost four hours now. I didn't even fill the ring all the way up with lump, or pack it down tight. Also, I've had to leave all vents 100% open for 245. But it's not been a problem yet. Still chugging along.