Hello folks. How much Charcoal do you initially put in a Large BGE for a Brisket and how do you maintain a 275 degrees temperatures for several hours. Do you add charcoal in between? I know the basics but I seem to have struggled with cooking a 9 lbs brisket on BGE. Puzzled as to how much charcoal to start off with. Do I start with little so that it is easier to achieve low temperatures of say 275 degrees. Then add a little more every couple of hours. Just not sure. Any guidance would be highly appreciated. Thank you.