[Pappy]

My weber top UDS has 1 dial vent with 4 holes. I'm thinking a 2nd. vent would help it out. I have seen other that added a 2nd four hole vent.
Wondering how that works compared to the single vent.

A 2" bung has more area than the 4 holes in the weber dial vent.

Also I have heard of some that have built their flat top UDS with eight 1" holes.

I'm thinking temps would respond faster it I allowed more exhaust.

Feel free to express you opinion. Everyone has one.