I have a 12.5 lb brisket and 2 7lb pork shoulders. was going to put the brisket on at 5pm hoping for a 12pm finish time the next day. My question is, when I put the pork shoulders on later that night(around midnight) should I add more charcoal and some more wood chunks for the shoulder? My thought was that if I added more charcoal at that time then I would be set for the rest of the night and I wouldnt have to add to the charcoal in the wee hours of the morning. Any advice would be appreciated.