After using my Bubba grill a few times the one thing I don't like is the bottom rack in the rib box is way to hot. Just to close to the fire box. Was wondering if anyone knew of some type of thin high temp insulation that I could put on the bottom of the rib box then maybe place a piece of 1/8" metal on top and weld it in. Don't know if it would bother the meat? Any other toughts on what to do to cool it off some? The Bubba is a reverse flow. My model is the 250R www.bubbagrills.net. Thanks for any advise.