I read an article some time ago written by an "expert" NE elk hunter that suggested "stoke that fire". His claim was that the animals were very used to the smell of burning wood (wild fires, scheduled burns, etc.). And that it is a matter of preference (or superstition....) whether or not to have a fire. I personally have a fire back at camp. If I am not going back to camp, I still have a fire....it gets cold sometimes in October on the East-side.... I do like to isolate my clothes from human smells though, when possible. There are sometimes that I really don't care. I haven't noticed a huge difference in success. I have been busted by my smell a few times though...at least I can assume....I've never asked my quarry....