Hi all. MinerJohn here from north Alabama. I just got my first detector. Ace 250. I hunted a good bit yesterday and today and would love to get some input from ya'll. I started in a park and left the settings set at factory. Coin mode etc..I noticed that it would get a tone quite often and not repeat. Is this normal? I played with this setting for awhile and found a few pennies and a lot of trash. I switched to jewelry mode and turned the sensitivity down two notches from factory. It did a little better trash wise. It kept hitting on 25 cents and it turned out to be trash every time. I also still got a lot of single tones that didn't repeat. One time it hit on a dollar at 6" and it turned out to be a beer can. I also am struggling with the pinpoint. Is it supposed to be in the center of the coil? Obviously I have lots of practicing to do but I'm hooked. Any advice on helping it discriminate better? Thanks, MinerJohn