He has obstinately hung on to this belief since I have been here. You are arguing with a broken fence post that no one is going to be able to relate to on this issue. It doesn't matter to the rest of us why he does this. There is only a short term harm in just letting him be, and that is that someone might believe him for fifteen minutes, until they smoke two different pipes for themselves. Best just to save your breath.All I was getting at is I believe quality materials makes a difference in the quality of the smoke.