Turns out that i can tune out a nail, and still get a nickle in no motion all metal even at 1.5" from the nail but hear is the cool thing i can get the nickle at 3.5" deep and it will even ignor a small foil, this in no motion all metal, seems like the retune acts like a discriminator , but i still get the bottle cap, but this is cool , Say i want to hunt the soccer feild in no motion and wish to ingor all the boby pins and small nails by the way i was unsing a 2" cut nail-- then i can just set it to ignor the boby pins and small foil and get going looking for the meat of the feild the gold rings, I will have to do another video showing this strange phenominim.