Rob brings up a good point. In fact, anytime you are attracting deer to your location, whether it be through calling or scents, scent prevention becomes all that much more important. For instance, this past Saturday I was using my rattling antlers and imitating a buck rubbing a tree and tickling them together. Sure enough, 10 minutes later a big mature 10 point came in down wind in heavy cover and I ended up not being able to get a shot before he caught a whiff of something he didn't like. Would I have seen that deer had I not used my horns?? Maybe, maybe not. But a mature buck will almost always, unless caught up in the moment, come in down wind and investigate before he commits. So, when you are calling it is important to set up in situations where it is more difficult for a deer to get down wind of you without passing through your area. Set up on boundaries and use the landscape to your advantage. And practice scent control like a mad man! best of luck.