On my maiden voyage today!...I have a fatty and a pork butt in. The fatty is almost done, got a ways to go on the pork. But my question is, (look at pic posted below) Is this pan of wood chunks/chips done or is there some more smoking to be done with this pan? I ask because this is the point at which the TBS stopped billowin out the vent. I took it out and added a 2nd pan that was ready to go, so no time wasted. Thanks for any imput on this, just dont want to be wasting anything.