I made my own saved pattern with just the top line disced/blacked out except for about one fourth on right side for larger silver coins and it works like a charm.I tried wide open in the quick mask window and it was a constant racket of falses that was not productive for me at all.
I also found that in some tests with a rusty square nail on top of a silver dime I got better results in conductive coins mode as the nail would overpower the high silver with a low iron tone.I feel it behoves each one of us to do our own testing and see and hear just what happens in either set up.Otherwise we will miss some good targets for lack of understanding in both 2 tone ferrous and conductive tones with more discrimination used.I feel you must experiment or you will be cheating yourselves out of some good finds,Ray.
I also found that in some tests with a rusty square nail on top of a silver dime I got better results in conductive coins mode as the nail would overpower the high silver with a low iron tone.I feel it behoves each one of us to do our own testing and see and hear just what happens in either set up.Otherwise we will miss some good targets for lack of understanding in both 2 tone ferrous and conductive tones with more discrimination used.I feel you must experiment or you will be cheating yourselves out of some good finds,Ray.