RE: Tobacco in the treestand?
I smoked for almost 20yrs ( quit almost 2 yrs now ).
I cannot say as I've seen any difference in the deer - but I notice that when I breathe in all that fresh Autumn air now - I feel much more healthy.
I wouldn't let it get you down - If its not enjoyable not chewing/smoking while on stand - then do and take extra steps to deal with the wind.