After getting my butt kicked the last couple of days at the beach and coming home with only $0.16 and a homemade bracelet I decided I'd take a break and head to the park. Chasing after high tones only I pulled almost $4 out of a really small area in a park that I have just pounded with two other top notch detectors. I knew I would be pulling a bunch of pennies out of the ground as I had a left them using the previous machines, but I cannot believe I missed 7 quarters, 12 dimes and 3 nickels in the small area I was working. I'm not knocking either of the other two machines, I am just amazed that there's anything left but pennies. The area I'm speaking of is approximately 15 ft wide and maybe 50 ft long before it widens out into a different section of the park. Just about everything I pulled today was 3in or deeper but not much over 10 in on one of the dimes. I purposely stayed away from the really deep sounding signals as all I had with me was my little leche digger, and I'm not real comfortable walking around a busy park with a shovel. Other than the pennies and the aluminum screw tops with a high tone I was really impressed with the CZ 21 in a park setting. it definitely found things two other machines have been over numerous times. I pulled at least four coins out of the ground today that were at least 4 in deep and straight on edge.