I love my fatboy, but the door leaked smoke and heat like a sieve. I was considering some other ideas posted, but the fine salesman at a local bbq supply store said I should try the felt from the green egg lid seal. They sold it by the roll. Just cut to the size you need, it's self adhesive, and designed to resist high heat. Five minutes of work, and you can see how the access door doesn't leak any smoke. Because of the lid sizing issue with the double chef, the lid will continue to leak but at least it's at the top after it's had a chance to kiss the meat.