Just got back from a local beach on Lake Ontario, trying out my new BeachHunter ID. Finds were slim with 4 beer bottle caps, 1 pulltab and 1 piece of aluminum in 2 to 3 feet of water. I got a lot of falsing in discriminate mode but all metal was fairly stable. May be due to power lines running along the beach. Any advice on operating will be appreciated.(Pinpointing and depth estimation) Thanks in advance,