I have smoked for 1.5-2 hours at 250. Then on to the grill (oil the grates) to crisp the skin.
Once your skin has crisped (not burned) toss in a bowl with your favourite sauce. Preheat the sauce so everything stays nice and hot.
My sauce is just a mix of butter, Franks Red hot, honey and a few spices. Make the sauce ahead and season as you like. DO NOT BOIL... you don't want to separate the fat in the butter.