4 out the last 5 bucks I have had mounted came on a string to a grunt tube. Killed a 18” 7 pt last year that came from way out of sight at a trot. He stopped twice, one grunt got him coming again both times. I carry a can call and 2 grunts and a rattle bag and I use them all often. No scent control at all, never care about the wind but I call a lot