My husband and I have a new smoker and I'm making a few modifications to it. I've watched numerous videos on making mods to the Oklahoma joes grill. Now a lot of people add on this dryer vent elbow onto the smoker in order to maximize the time the smoke spent in the chamber...so it doesn't straight vent right out. This piece I made has the same surface area as the 3" elbow. I'm wondering that even with the same surface area that the air flow will still be effective given the uses of the dampeners. Thoughts?