In using my UDS, I have noticed how moist (wet) it runs, in relation to my older ECB or even a Weber kettle. Have played around with various vent configurations to see if that makes any difference. I'm using the removable lid, except my lid has two 2 inch bung holes,so yesterday, I tried it with two exhaust pipes. Left only one vent hole open on the bottom, and it was clamped down. With only one stack up, temp was running right at 225. After adding the second stack, I noticed only one was smoking. Looked closer and found the other was now drawing in air and after time, the temps started creeping up. I shut down the bottom vent completely and that only seemed to increase the draft from the top, with temps remaining up in the 250 to 275 range. Which got me to wondering, for those who used the 8 holes in the top configuration, do you have trouble keeping temps down or how does that work? Does it run wet or dry? As I recall, those are eight 1/2" holes, and if I'm doing the math right, each is roughly .2 square inches x 8 = 1.57 square inches of vent area. One 2 inch stack is right at 3 square inches or double the area. If anyone has tried both configurations, which works best? As I recall, a Weber kettle has 3 vents on the bottom and only one on top, which in terms of vent options, is exactly opposite of the way my UDS is setup.