Okay, now I understand.
I'll have to run mine to tell you specifically. As it's outside and I'm not standing right there, I don't monitor the color.
I do know sometimes I'll come out and see some gray smoke, but I'm not sure under what conditions.
I know it doesn't billow gray smoke the full time.
Not sure it really matters does it? If 90+% of the time you have the clear smoke does that work?
Is it a flavor profile?
I'm not sure at the temps of 500+ that it will really matter as the food will be on there for only short periods.