ive had and watched mature whitetail bucks on public land(might as well send them to how to survive hunting season school) walk withing feet of me and my dad.....most of the time we are sweating from the warm fall days of small game hunting and turkey hunting.....and often we have blood on our hands and clothes ect.....one of the bucks almost ran into my dad.....who knows what he was thinking.....but when he bent his head down about 2 feet from my dads face my dad jumped at him to scare him off.....weve had countless expieriences like this.....im not into spending 100s of dollars to control something that deer really dont care about.....all the ones weve seen seem more curious then scared....and in rifle season they dont have the time of day to check the wind or say hey i smell human im not going that way.....they are running for their lives.....ill stick to my normal gear......you guys go ahead and spend the money......good luck........