Caveat- I have never used a Smokenator. But, I always leave my top exhaust fully open and control temperature with the bottom vent. I also rarely leave the area of the grate where there is no charcoal open. I want the draft to pull air up through the fire. This gives me the best control of temps in my experience.
the meat thermometer was so far past the top reading, it read Taylor
"perhaps...but then again...maybe not..."