Sorry in advance for all of the questions! I am about to smoke a 7lb Pork Butt in my electric smoker. So . . . hear are my questions: * Do you put the pork butt on anything OR directly on the racks of the smoker? * Ideally, what temperature should I set the smoker too? I have heard anywhere from 225 to 275. * Roughly, how long am I cooking it for? I have heard anywhere from 1 hr/lb to 1.5 hr/lb. I am looking for a very tender meat with good bark. * Wrap - do I need to wrap at all in the process? Do I need to wrap at all after I pull the butt out of the smoker? * Last question - should I leave the vent fully open during the whole process? Thank you very much!