I think it depends on the situation and the setup. If you are hunting in the woods where visibility is low then you don't really need them. But when i'm hunting on the edges of fields or logging roads or anything where they can be seen from a distance then i like to use them. They have helped alot and also times have been a pain. It also depends on the time of the season when you use them. Here in NC the beginning of the season you can use them pretty effectively. But towards the end the birds have gotten alittle skitish and are hesitent in coming it to them. IT ALL DEPENDS ON YOUR SITUATION AND AREA.