Talking about air leaks one thing one of us did was put a brick on the exhaust then lit a piece of wood and went around the doors and such looking for leaks. Once we got to the intake slide door smoke was sucked in like a vacuum. It was drafting so well and with the slide door having a little play air is getting in.
Whiskeypig I will get you some pics when I get back over where the pit is stored
18.5 & 22.5 WSM-Weber one touch. Cyber Q Wi-Fi. Head cook Thick and Thin BBQ