Last night I decided to do some chicken quarters on the WSM and figured I would use 1 chimney of charcoal and get the temp as high as possible, add a little smoke and get it done in a fairly quick time. Unfortunately, the temp never got above 200 and I ended up finishing the chicken on my Weber Kettle grill and it was bad. What did I do wrong? Maybe I did not let it get hot enough before adding chicken, I only waited about 20 minutes after adding charcoal. Maybe vents were wrong, they were only half open for the first hour. Never had this problem before, any thoughts?