Just got done building my first UDS, this is also the first time I've smoked anything. I have two 3/4" ball valves for intakes, and 4 1" pipe nipples as exhaust. I lit about 10 pieces of charcoal in a chimney, and dumped them in the center of my basket. My basket sits up about 3" from a pizza pan I use to catch the ashes. 6 pieces of wood all just smaller than a soda can, and about 10 to 12 lbs of charcoal(not match light, the wood kind). Anyone have any suggestions? All my exhausts are wide open, one ball valve is closed, and one is a little less than halfway opened.