Interesting Bubba. Always more than one way to skin a cat I guess.
Mine hasn't had much use yet but its dispensing ok.
If its warmed by the radiator I can crank it down some, in the garage, setting it to one drip a minute wasn't an issue & I let it get up to, fan coming on temperature. This was at roughly the one third open position.
I,ll report back at some point, middle of summer here, warm to hot, fires & smoke about, not great but theres many others a lot worse off than the outskirts of East Melbourne.