Not really used to the V3i and what she is telling me I dug a lot of targets resulting in a pocket full of trash and other coins. Then I came across a solid 83, but when I pulled the trigger Blue came up as the strongest signal. I dug down a few inches and up comes a quarter. I rechecked the plug and the surrounding dirt but it was clean. I thought green would be the strongest signal on a quarter, but not this time. I hope this machine is a little more accurate in the future.