Trikefreak,
That's a first for me: must put in smoker for 2 hours, and THEN do the mailbox mod. This is really absurd all the stories that keep popping up, and yet folks will rave about how great it is. Sorry if I'm sounding cynical, but I can't get one straight answer on how to make this pellet box work correctly. I'll go through 40 lbs of pellets by the time I try all the suggestions that keep getting thrown out there.......... Again, I've not thrown in the towel, yet, but at times I don't know what plan of attack to try. At times, I'm leaning towards chunks of wood that fit in the chip box, and just check on it every hour or so.
What smoker do you have?