I have a prizm II and have done pretty well with it finding coins. I have been to a few parks and have done ok with finding the coins. There is small town park that was has been there since late 1800's. The park was closed in 1979 and a new park added in a new location. I have found a few older coins but have found no jewelry in any of the parks. My question is do most rings show as a nickel on the prizm II and if so does the indicator stay on the nickel or does it bounce around from the nickel to the penny indicator. I get a repeating signal but not sure in need to check all repeating signals even if land on the tab indicator.Thanks for your responses.