Just got my first offset smoker didn't do to bad my first smoke had alot of trouble keeping steady heat. I made a charcoal basket 12"x12"x6" and filled it half way and it was way to hot even with all vents closed. so im thinking next time a little less maybe? is it so hot because im using too much charcoal? im using royal oak hardwood lump charcoal. can anybody help me on how much to use and how to better control temp or is it just something i need to play around with?