I got my AT PRO back Tuesday with the up grades and decided to try it out today since it was a little cooler around here. Only had about an hour and a half to hunt, so I went to a local school grounds( built in the 50's). After digging about a dozen clads I got a solid Quarter reading at 10 inches. I thought for sure was going to dig silver, but out pops a 1822 "Large Cent". What a surprise to me!! I like this PRO!!!!!!!