Dayna,
DON'T USE IT DURING RIFLE SEASON!!!!
I use the cow elk I,what I do is I carry it with me.When I get a bull to respond I set it up and move 10-15 yards out front or to the side depending on time and how close the bull was.The other trick i try is loacating a herd in the morrning and get ahead of them.I then set up the decoy and cow call trying to pull a bull in.
What ever you do don't let the close enough to smell the decoy.I spray cow in estrus on cotton balls and staple them to the back of the ears,that wayI can remove them after every days hunt.
BBJ