Help I am getting ready for a party next month and I have my wife talked into a small (40 to 50 lbs) pig. I am going to smoke it on my Brinkman Smoke N' Pit. I need an idea on how long it should take on low and slow and any problems I might run in to. We are going to serve this with potato salad, baked beans and bacon wrapped jalapeno poppers. Will this feed 20? Rat