Originally Posted by Cayman1
Probably only difference is that the charcoal in the area where the vent is open may burn before the coals in the area where the vents are closed. I notice this when I use my Auber. Where the fan is will burn quicker.
Well I've read that a lot of these cabinet smoker guys will light their fire on the opposite side of their ATC, so the fire will burn towards it. I kinda do the same with my WSM. I put a couple starter cubes just off center of my lump stack and let it burn towards my IQ. It seems to work ok.