I am new to smoking and have done it 4 times now...one thing I cannot seem to get a good consistency on is heat stabilization and top end heat. In all of the research I have done this appears to be a common "feature" of the Brinkmann I have. This past weekend I tried something new to get a higher end top heat and allow for me to control the consistency a little better...instead of just using the bowl to hold the charcoal and wood I started putting some briquets and wood directly on the bottom of the unit. It worked like a charm but I am concerned about damaging the unit over time (I am assuming that area is not made for that kind of heat). So I wanted to ask opions on a couple of ideas I had: 1. Lining the bottom with fire bricks so that I could use it for that ( I also assume this would help with some heat convection) 2. Using a cast iron skillet/dutch oven to do the same thing Also I would like to add a third shelf to the unit...has anyone ever done this? Any thoughts or opinions on this would be great!