Big Papa.
In my experience (sadly, only 8 years of hunting) they ignore some scents (like Tinks etc...). I have tried using these products, followed all the directions, and have had no luck at all. Who knows if they work. Maybe I'm not doing it right. I saw this stuff called Doe in Heat, and it comes in a spray can that spits out silly string like material 20 ft from Away hunting. I don't know if it will work, but I'd sure like to point it in the direction of my hunting buddies. Go figure.