I have been telling her that we have to dig those pull tab and foil signals if we want to find the gold, she's a believer now. it is also the same signal as a lot of the pencil erasers, we both have been digging a lot more nickles as well. If you can get the wife or girl friend to be there as you dig a ring out, they tend to get a little more serious about it. Mine dug her 1st ring, a bling but she had the glass out to make sure, she is a little on the ADHD side and she will tell you so. This means she tends to grid very well but she digs every tiny, spuratic, signal, even in a spot with a shredded can or foil, I can't begin to do this. I am working harder at digging those fainter signals, I just don't know how silver and other coins read as they get deeper on my AT GOLD. I understand that they don't always register on the numbers when they get too deep.... still learning , got a ways to go but still loving it.