Why the foil right off the bat? Smoke (I assume your throwing some sort of hardwood on your coals) does it's magic in the early parts of the cook.
Matt Schneider - "The Smokesman" - Velvet Smoke BBQ & Catering
KCBS Certified BBQ Judge #54767
Weber Smokey Mountain 22 & Superior Smoker SS1
[B][COLOR="Red"]"To BBQ is human, for swine is divine!"[/COLOR][/B]