All I ever use is Pro Zero with iron discrimination at 25-30. When I first got it, I never used iron discrimination. I was finding silver coins at first, then after a while, I wasn't. Then 2 months ago I started using iron disc. And started finding silver coins with nails in the same hole. I have been consistently finding more silver the past couple of months.
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Correct. Nothing notched out, iron discrimination at 25-30, iron audio off.Pro Zero ? Meaning no notches in the display turned off? Aka all metal mode ? With pro audio ? Not regular .