Well, my Tracker is my "scout" machine-I get in a competition hunt mode and just blow through a place to see if there's any thing and it saves me hours of hunt time as it doesn't overreact to the small stuff like teeny foil. Today I went back to the city park and instead of hunting the tot lots like everyone else, I decided to go out in the park area with the Tracker and do a quick once over. Wow! Was I shocked. The biggest thrill was the FOUR $1 coins in a 5 foot area. One was at least 8" deep in the e flower bed with loose soil. It started out finding the first two outside the flower bed and so I just made a big circle with the sensitivity turned up to 3 o'clock instead of 1 o'clock where I was running it and that's when I hit the 8" one-probably made deeper by the gardener. Then a foot away the fourth one at about 5". The funniest signal was the "sick duck" sound on the coin spill which turned out to be 3 nickels covering a couple of zincers. I knew it wasn't a tab-actually thought it was a ring. The high tone tried to hang in there, but the nickels would override part of the signal. The costume jewelry piece first gave a high tone then a low tone. Cheap metal. Thanks for looking.