Ok guys I need your help. I just got back from the hospital with my month old son so I haven't read up or searched enough. My son is fine now btw. I have an 8lb butt that I plan on slathering in mustard then rubbing and wrapping in Saran wrap tonight. What is he rule of thumb for temp and time? Smoker at 220 degrees? For how long? What temp am I trying to get to internally before I foil/towel and cooler it? Should I fill the water pan? If I fill the chip tray and go to sleep should the smoke last until at least 6 am? What am I missing? Again I apologize for he dumb questions but please excuse me.