Where is the best location to mount an external thermometer on one of these offsets? This is an Academy Sports Brazos model... The cooker comes with a hole in the cooking chamber lid but it's pretty high up in the chamber and I'm fairly confident that the temp reading I'm getting at that location is a good bit higher than grate temp. I'd like to mount a thermometer lower in the chamber. Where, in relationship to the firebox and the lid handle is the best location to mount it?