I am starting my 48th year of Bowhunting Biggame & have never used it.
I am always aware of wind direction & do use Sex scents (Deer, Elk, hog) when hunting these animals. I do not use any other coverups.
If I am in a tree & the wind is not swerling I have no problems being only 8 feet off the ground thou mostly hunt from 12 & 15 (I use ladder stands).
On the ground I just set up according to the wind.