Disc. setting notch set to allow nickels but when I get a reading in that range its a pulltab and the pulltab setting is notched out. I'n must not understand something. using the 3 tone setting, so I switched to all metals still getting tabs on the nickel ID. and have found a nickel yet. Can't believe there's no nickels anywhere i'm hunting. Let me make it more clear, Disc iron, foil, allow nickels Disc tabs. Also the Iron and foil still give an audio but the numbers are low and the sound is lousy, thought it would be silent like my 1270 " Disc it and you won't hear it. Plus the high tone pings alot with a high number but go to p/point it and no audio response. could the SEN. be to hight and this is in BP mode. SEN is 30. Or could it be the 11 inch coil in trashy area.the ID and nubers don't seem to match, reading 30, 3 inches, confidence all the way and its a tab. Any help, only my third using it so I realize its different from my 1270. on the high pings I look for constant pings but sometimes i'll get 2 or 3 good audio sound and then it will change to a low tone? I like the All metal mode but you have to watch the numbers, the high numbers are dead on the money for the TID and the depth is just about on.