I had a special park picked out for the Tracker. It turned out to be tab hell, so for an hour I switched to the Ace w/sniper coil and notch. Thought it was gonna turn out to be a zincsalot hunt but finally the other coins started coming. I did have a ball at a local school the last half hour with the Tracker. There's nothing like that high tone "peep" on quarters and the upper dime was a silver one on TOP of the playground! Strangely, the mexican dollar coin, bottom left, was almost rejected and registered iron on the Ace. I just LOVE the sounds the Tracker makes.