I have hunted off and on with one the last 3 years and I'm not even taking it out of the box for the rest of the season. Maybe I'm not using it in the right situations but birds now seem to flair more from it then actually come closer. The 1st year using it I could REALLY tell that it helped but it sure has been down hill from there for me anyway. I'm sure it will be just a couple of more years before Minnesota bans it outright anyway.