I killed my biggest blacktail to date with one. However, I modified by adding a couple of small, forked horn foam antlers. When I used it as a doe, it spooked does, I suspect because they seem to know the does in the area. But when used as a buck during the rut, it didn't. It actually aroused curiosity. Since bucks roam during the rut, the sight of an unknown buck didn't seem out of place so it didn't spook them. After a rattling sequence the buck I killed came to it on a string once he spotted it. Shot him at about 10 yards, his attention focused on the decoy. He never saw me draw.