Heres my thoughts on this. The first dew time i went hunting i did the whole spray down and dont smoke/chew routine. But call it laziness or just in a rush to get to the stand after work i quit doing all that. I am addicted to smoking. Ive been doing it for almost 20 years so quiting is rough. So yes, ill smoke while in the stand. Does it hurt me? Maybe, but ive taken some nice bucks through the years. And i dont really buy into the whole scent blockers and sprays. Do they work? Probably. The science is there, but remember all that stuff is relatively new to hunting. Our grandfathers and theirs didnt have all this technology and they still managed to get great bucks. Like i said, just.my opinion.