Wanted to mention I had success using butcher paper on the 22" kettle. I wrapped a brisket and held it for 2 hours using an indirect heat method. My charcoal basket for the Weber kettle is the same size as the Slow and Sear. I use a water pan the size of a loaf pan just above the charcoal. I light 3 coals to start a minion at one end and place a regular aluminum foil drip pan up next to the charcoal basket. The basket takes up just under half the space of the grate above. The water pan blocks occasional flare ups . When a brisket is ready to wrap , it is usually 1/3 smaller and when tightly wrapped it can safely be placed on the grate away from the coals. I had no paper char or discoloration from the heat. Seems to have worked so far. Keep the temps under 300 and a pan over the coals to block flare ups.