Did my first waterless cook this weekend. Covered the pan with aluminum foil. FIlled the ring with old Kingsford(still using this stuff up) added 20 lit coals. The temps got up really quick, shut the all the openings down to 1/3. Other than some minor tweeking of the vents it went fine. This was only a short cook. Did a rump roast and a fattie. They both came out great. Definitely will try this again on a long cook. Great not having to clean the pan when done