Hello all my new found friends! I am new to this site, and fairly new to smoking. let me introduce myself. I am a mechanical engineer and the general manager of a wind tunnel where we test NASCAR cars and trucks...officially the coolest job in the world! I am pretty mechanical, can weld and have accress to a great machine shop and fabrication "stuff". I just completed my first horizontal smoker. It's a single pass, 31" dia and 52 inches long. I built the trailer and the whole shootin' match. it cooks OK but, as with so many single pass, I am having too hard a time controlling the heat across the entire cooking surface. Not really interested in messing with addition of tuning plates and all that. After about a dozen cooks so far, I have mde the big decision to CONVERT the unit to a reverse flow. I will keep you all in touch and will definately be asking questions along the way. I am also about to begin building my first UDS. Actually gonna build two and give to a friend as a wedding gift...what a great gift that would have been for me!