Looking for someone that has done a lot of smoking on a drum smoker. I have been smoking for many years on a off set, but still little new to the drum smokers. My question is really about the time and temp for cooking the brisket. My first 2 turned out really well at about 5-6hrs with a hour in the cooler. My last one didn't turn out as great. Little tuff. I think part of the problem was that I may have pulled it off early not closer 10 190. Any suggestiongs? I typically cook at 12-14lb brisket at 200-225 for 6hrs on the drum smokers.