I've had my E-trac for almost 3 months. I have been using the default discrimination pattern with the exception that I notched in silver dollars. My primary interest is coinshooting. I like finding old coins. I've found silver coins but I wonder if I'm missing more because I haven't opened up the discrimination pattern more. I'm sure most of you are familiar with the pattern where most of the discrimination is in the bottom right corner of the screen. If I opened my discrimination screen like that do you think I'd hit on more silver that may be masked by nulls? I was just about to try and find that pattern and upload it...but I thought I'd seek out words of wisdom from my E-trac peers. (BTW I hunt in multi tones. In addition to the discrimination pattern, I think multi tones also helps me discriminate.)