Well, the B-mobile is a hard decoy to pattern. But I think that he's unpredictable dosen't override the benfits. Dad, mouthcaller, andI once got a flock of about 20 hens and 4 struttersall the way across the a field to him and 4 hens. But even with just with hens you can get an ol' tom to hang up. I hve had mostly good experiences with it.