Hello, Coinguy here, I was out using my new Garrett Ace 250 and I keep getting signals and once I dig it says 2 inches. And then it goes to 6 to 8 inches. Has anyone ever had this happen to them? I get a target and I can't ever find it, thinking about buying a pinpointer (probably a Garrett pro pointer). I swing the coil over the target and I hold down the pinpoint button and I start to dig once the sound gets the loudest and I never find it so I give up. But I have found some coins, just clad in my own yard. But once I get to the deeper targets, it gets 10X harder getting the target