I am considering using a decoy for the first time this year. What are your experiences with montana decoys? It is the only one I am considering due to the distances I have to walk to get set-up to hunt. I don't want to carry anything else. Do you have to set these things up pushed back to a natural barrier so that deer cannot get a side view, thereby spooking? Thanks for any hints or tips on how to use a montana decoy or even if they are effective or not.