I purchased an ATPRO last Monday and with the help of John Bortscher and Rich Hirschmiller I set it up in the Pro Mode, zero, iron Discriminate at 27 and began hunting, the 1st day resulted in a 1978 silver class ring, 2nd day a gold coloured ring which turned out to be junk but the 4th day resulted in this 22K Gold ring with 50 small diamonds, it came in as a strong 63 signal in ankle deep water one scoop deep. It weighs in at 4.3 dwt approx. $252.00 gold value, but my wife Mary claimed it.