For once I agree with the man.

I was hunting out west last year. There were owners of a scent suit company that were hunting with us. Every mourning the guide would tell them to walk this way because of the wind, of course they didn't have to play the wind, the were scent "free". After 10 days of the animals running out the other side of the valley, which was actually comical, they complained to the guide about not seeing anything. The FIRST day they played the wind properly they both killed P & Y muleys. I think scent control is a joke, your missing animal sightings if you are not playing the wind. The only way this is not the case is if you have a gas mask on to filter your breath nad take 50 tablets of beano to filter last nights chili.