Bought one of these cheap and am very surprised how sensitive and deep it goes. Not bad for a machine made during the late 80's. Good ground balance and steady threshold......sensitivity was on 8 out of 10. I could hit my 1Gram nugget at 5 inches using ear-phones and small silver coins at 8-10 inches. Also came with a big coil so I'm yet to test that out which will be interesting. Looking forward to hitting some bedrock and shallow crevices.
Cheers!
Cheers!