Took racer out to trashy park yesterday to see how it would do. I was using default setting 3 tone and boy the racer was going off like a machine gun. Hard to tell good from bad with all that noise. Had to look at I'd constantly to see if the numbers were close to coin numbers. . Numbers jumping all over the place. Can someone with some hours on this machine tell me how to adjust it so that I hunt this type of place without going bonkers. I've used various other detectors and non were as bouncy or as noisy except for the classic t2 .thanks