I've heard the first mistake we all make with Doe estrus scents is use it too soon. In Mich you shouldn't use it til the end of Oct. And I like to use a Doe decoy with it as well. But it's not a guarantee by any means, If you have a Buck in your area that is not already with a Doe and is looking it could work great. But when it doesn't work like magic we think it must be no good. During the Peak Rut it will be hard to get a Mature Buck to come in on scents, their too busy with the real thing. By the second rut (28 days after the peak)when the younger Does come into heat it might work better. Just an opinion, I hunt with an Old guy who dumps it all over the woods and on himself, but I ain't telling him any different. Hedon't come in my Camper, he's got his own..thank god. LOL