Rub the pork shoulder or butt with as much rub will coat it generously. Cover the pork and refrigerate for 3 hours or overnight.
Remove the meat from the refrigerator 1 hour before you plan to start smoking.
Preheat your smoker to 225F, according to manufacturers instructions.
Smoke the pork at 225F for 6-8 hours, until meat is dark and crispy on the outside and the inside registers 190F, adding more wood chips every 30 minutes.
Chop the smoked pork, combining the crispy exterior and juicy interior meat.
Serve piled on a bun and topped with Memphis BBQ Sauce and cole slaw, if desired.