My wife voluntered me and my new WSM to cook for a party we are attending this weekend. I will be cooking 5 butts all about 7-8 lbs for the party. I need to have them ready by 6pm Saturday so I was thinking I would put them on around 6pm Friday and do a overnight cook. Since I'm new to this, does this sound like a reasonable time? Also my wife wants to put the meat in two big electric roasters after its pulled to keep it warm. I'm afraid the meat might get dry. Any advise?