Four pounds of London Broil Round. I trimmed the fat, cut thin and against the grain, and it is now marinating in Newman's Own Honey Terriyaki marinade. Not sure if I should use any smoke or if I should just cook it at like 140 for 4+ hours. I don't know what type of wood I would want to burn though. I think I have some apple wood that might taste nice? I don't know. I am a newb.