I am debating which detector would be best for shallow lake detecting. I will be using it most in water of about 4 to 5 feet this coming summer. I see alot of nice posts of the tiger shark . I have a Fisher F2 that I love and use for land detecting and was wondering if Fisher"s water detectors were as good? Or something else in the $800 price range. I want something that is easy to use, durable going across the lake in a boat and good at finding gold chains and rings in fresh water. I need it to be a good detector for the beach areas where I anchor and detect. Any suggestions are appreciated.