I believe anything you can do to keep your scent down can help. I have never had any luck with the lures although I know other people that have. Grunt calls work sometimes. I usually don't use one a lot but if you know there is a deer nearby but you can't see it well it can help pull them a little closer so you can get a shot. The thing about using a grunt call to remember is they are looking for the source of that sound which is you so they will be looking for where you are when they come.