Never used one. I think it would be like using grunt calls or doe bleats, some deer will come right to them, and some will know something isnt right and head the other direction. Im trying more and more to let nature takes its course when Im in my stand, unless I see that hammer of a buck walking out of range and knowing he isnt going to come closer, then Ipanic and say awwww screw it, and make a grunt or 2 lol.