So I had my Masterbuilt smoker sitting on a picnic and my mailbox sitting on a bench connected by the flexi dryer hose. THis has worked really well for about a year and a half. However, it was time to give my wife the picnic table back so I built a new stand which located the mailbox on the same level as the smoker. The flow of smoke has seemed to decrease substantially, and in fact it seems like more of the smoke is escaping from the vent holes in the mail box. My question is, does the mailbox need to be significantly lower than the smoker for the smoke to flow properly? This is the current set-up with the revised mailbox mod: I'm thinking I need to build a small shelf underneath for the mailbox, and then pipe it up to the smoker cabinet.