I was getting ready to finalize my chargriller mods. I bought a piece of sheet metal for the smoke damper and 1/8" steel plate 27"x16" for my tuning plates. Sorry no pic of the damper. what i did was, i took a plate i bought from lowes and fabricated to fit on the wall where the sfb attached with the holes and everything. i cut out the football shape in half to decrease the amount of heat. Then I placed the 1/8" steel plate into the smoke chamber to cut. but, i left it in place, with 2" gap from the left side. right side this is when i decided to pull the exhaust to the right and to the front. I then started a chimney of charcoal to see if this would actually work. OMG!!! IT WORKED!! the temps were within 5 degrees across the grate I CANNOT wait to test it out.