Tuning plates, once adjusted, will make for more consistent temps across the CC. They also help with heat retention if thick enough.Pete, you mentioned when I was starting the build about tuning plates. I couldn't handle making this reverse flow, or fixing in tuning plates because it would have been too heavy. but I built in a shelf in line with the bp were I could put in removable tuning plates. What advantage do tuning plates give you? Better heat control and more consistent temps?