Went to a very difficult site yesterday. Keep in mind that there has been a pile of relics taken from this 1 acre spot, in town, with a 1940's house built on it. The ground was reading 3 bars most of the time on the FeO meter on the GB. I was hunting in disc mode, sens wide open with the 11" & 5" DD coils. As you can see, it is very hot on small brass buttons and VERY small lead. The two nails on the right are what you have to "See" thru to get the goods!! Nothing really deep, but the 3 ringer, which was at 8" deep. Most of the buttons were 4" or less. I finaly settled on the disc set at 40 because of the unreal amount of foil in the yard. If it said 55 or up on the meter I dug it. I tried my other machine there, which is a killer open ground machine and it was not performing like the GB SE. I would like to get it out in a open field with the 11" DD and see what depth it will get. Oh, if I were gonna go west for gold, I think the GB would be a killer nugget detector!!!