I've found two 14K gold chains and the numbers were all over the place and there was other trash items nearby. If it sounds scratchy or the numbers run from low to high, I dig. About 3-4 months ago, I got a real trashy sounding target in the water and dug it anyway. I had a small rusted nail and a sterling silver ankle bracelet or chain whatever you call it, but there was enough variation of the tone to make me curious. When I'm in the water and can't see my console, I go by the tone and even when I see the numbers, if the tone is right I dig. I was showing 04 on the console, but had a good tone and found some trash and a clad dime. Sadly, 22 casings, 22 unfired rounds, aluminum foil, tabs, pop tops, pull tabs all come in the range that gold is found in and everytime I was tired and got that particular sound I almost didn't dig, it was a good find.