My perfect Grill is still in my head. It's easy to get the perfect smoker but the perfect grill is more elusive. Before I switched to lump I owned the perfect grill made at the welding shop at the high school I taught at. It burned out and didn't work with lump so out it went. My perfect machine has to be able to grill for 30 people, I have to be able to leave the meat unattended for at least 20 min. at a time. It has to be lump friendly fully adjustable for fire height and air flow. I will have to build it myself.