After much anticipation I finally received my YS640 on 10/2. I didn't have a chance to post on the forum until today (crazy busy). I was too excited , and wanted to get it on the deck. My brother and I (couple of big guys) lifted it off the pallet after removing one 2X4. I didn't want to unwrap it until we got it on the deck. We had about 16 stairs to climb....wow is it heavy. Anyway we got it to the deck, I unwrapped it. There is one dent on the bottom. No worries though, I sent a photo to the representative at AllThingsBBQ. She responded the next day, they will send a replacement part. I received all other parts. No need to read the instructions since I read them online about 5 times already . Did the initial burn for an hour at 400. I then grabbed some bacon grease I was saving and seasoned it for another hour at 350. I've been trying to figure out the temp on this sucker. I followed the instructions regarding damper placement but the right side was 40 degrees hotter than the left side. I initially thought that I had the chicken too close to the probe, but I remembered that the right side was off during the seasoning. I didn't have time to play with the damper, my wife was hungry and I promised her chicken. As a result from my temp issues the chicken cooked faster, and the smoke flavor was mild. So I was doing some searching and came across this thread http://www.smokingmeatforums.com/t/143874/yoder-640-damper. I'm going to test this theory tonight hopefully. Check out the dent on the bottom shelf: I purchased the A-Maze-N-Tube-Smoker and it worked like a champ (thanks for the advice MossyMO). I could taste the smoke flavor. But mild like I said earlier. So the next step is to play with the damper to get a uniform temp throughout the grill. Then a biscuit test to verify. jzzmusician did a great job testing the damper and posting the results.