just came in from my yard found 3 Indians in about 10 minutes. two were in the same hole and the other was about 2 feet away. if you get a two way high signal however faint -dig!! they were all 7 to 8 inches deep and under roots. been over that area probably a dozen times with the at pro,V3i, fisher f75 and vaquero and never got a signal that I thought was worth digging. I'm learning a one way signal or one that pinpoints different from a different angle is usually a deep rusty nail. I haven't tried cleaning them yet but I can see one is a1904, one a 188? and the other one I cant see anything but the feathers yet. awesome machine and I'm liking the 10.5" coil though it is heavy.