Need help. I have a Brinkmann vertical square charcoal smoker and I guess I am alone here - my temps run too hot. Everyone else with this smoker can't seem to get the temps up high enough. I have the basic mods done, grilling wok for coal pan, sand in water pan, felt seal around upper door, orange RTV around stock thermometer ( although not used ) and I keep it out of the wind and sunlight. It doesn't seem to matter much what position the vents are in at times, the temp will just "climb". If I shut the bottom vents almost closed and leave one of the top vents 1/2 open later on it will stabilize at around 244 deg. But you have to watch it. Anyone else with this issue?