as far as deer " looking right at me" I dont think it your magnetic field It has been proven that deer see the ultraviolet spectrum much better than we do. Certain laundry detergents with brighteners added make us glow when seen through a deers eyes. I am sure that guys will be successful wearing this suit, but I bet they are also sitting still and quiet, with the wind in their favor, in a place with good deer movement. Aluminunm foil in your hat wont afffect the deer, but it will keep Aliens from abducting you and taking you away in their spaceships.