Well, I run my UDS with only 3, 3/4 holes and a Weber lid which only has four holes on it and I end having to run it with only one intake about half way open or the temps spike quick. With that configuration there is no problem keeping temps in the 225-250 range.
UDS, Pit Barrel Cooker-Courtesy of Poobah, WSM, 22.5 Weber Kettles-A, K, DR Stamped, 18.5 Weber Bar-B-Kettle, Weber 18.5 Smokey Joe Platinum, Weber Genesis Silver B, Lil' Chief Smoker, Lodge Sportman Grill, Backyard Fire Pit, Dutch Ovens, Discada Set Up!
BobBrisket Jr.-MUDS, WSJ Silver
My BEST Compliment......"You're a good cooker, Dad!"--My Son :)
Miss You, Marty! RIP