I'm seasoning my new lang and the question I have is on pigroast.com it says to throw a piece or 2 on the fire after you have sprayed with water and turn damper to 45 degrees and almost close firebox dampers. Ok so my question is how long do I leave it in that postion? because I get alot of heavy smoke doing that and I'm sure that is what it is suppose to do but i'm not sure for how long and thanks for the help.