I agree with Zoomer for the most part. I usually don't use calls either. However, when the rut is coming on and the bucks are starting to move, calling can really work. The rest of the time, and especially if calling is loud and often, I think it risks spooking them off. It seems like the more pressured the deer are, the less calls work. Like some others have said, scents are another matter. Deer have to use their sense of smell, to find food or other deer and to avoid danger. Maybe if calls weren't being used as often, deer might respond a little better. The way it is these days, blowing away on a call on public land is like standing up and screaming, "I'm a hunter over here!" They know that sound means danger.