I have that same smoker. Never thought of putting a butt down below though. Have you ever thought of putting a pipe on the exust and using that smoke to do a cold smoker?
nick
B
Boerderij_Kabouter
Those work great for smoking grains, if you're into smoked beers!!!
C
Calico Jack
Nice lookin' meat. I picked up a smoker last year and love the results I've been getting!