I am going to admit how big a dummy I can be.
I have had my Smoke Hollow grill for two years. When I started it up I could not see any difference when using the smoker flame on low or high. Like duh, I tried it early this month on low setting for the first time. The temp never got to 130F. On high it always was at 150F. Now it was in the forties outside. But that says it is putting out less BTUs.
After knowing that. I made really outstanding baby back ribs and this last week the best filet minion I have ever made. All on the smoker burner knob set on low. That is the only way to go. A bit of mesquite smoke helps.
I hope I am the only one that did not figure out the above.
It is a great well designed grill.