I use the can call, and have had mixed success. The first time I used it a large 8 point buck came into me. That being said, once he was in the field eating, he didn't seem to come any closer with me using it or be paying any attention to it. I've since tried to use it several times and never called a deer in with it. In fact most times when I see deer are when I'm not using it. I've got two friends that have had the same experiences as me with other calls. It seems like if we see deer it's just that we are going to see them and doesn't seem to have anything to do with a call. Then there are other guys I hunt with that swear a their grunt calls work great. So who knows.