I recently bought a Chargriller grill, then added the side firebox. the heat coming directly into the smoker closest to the firebox is burning the meat. Jeff Phillips mentioned in one of his ecourses that you should install a baffle so that the heat coming directly into the smoker does not burn your meat closest to the firebox. Has anyone made this modification? If so could you help me out with some tips on what you used and how you installed it?