A week ago I decided to hunt the beach near me with the V3i and I was really impressed how the detector deals with the right setting just on the beach. It was a coin killer of all kinds and any depth. But I couldn't use the preset as it was and dropped a bit rx and discrimination and I used tx boost. The detector was so smooth, quiet and responsive than ever before. The beach I hunt its with black sand. I know if I had a bit more time I was going to live with gold jewelery. Also I found out that correlate it's a useful tool in fields with moderate mineralized soil.