Just pick a Brisket today my are to put it on first thing Sunday morning. It right over three pounds. It has been trim already. Do l need to put a Rub on it and put it in the refrigerator over night or just put rub on before l smoke it? Fat side down on the smoker? And everyone say smoke it slow for temp should l set it at? Have a lot of rubs to used anyone have a good one out there because l may have it already.