A HH PI for salt water hunting when I travel south from Canada this winter to the salt water beach's. It is my intention to hunt the surf, shallow water and was wondering if there are other users of this PI unit that can tell me what to expect in the way of depth on small to large Gold rings and chains in salt water. I felt the need to try something other than my Excalibur or SOV/GT this winter. Thank you H.H.