andersonrmatthew

Just bought a new 597CI Combo from Humminbird. I have it on a 17ft Lund that runs 4 riggers and no matter how I angle it I pick up the cannon balls and it views them as the bottom. it wont show them as a line or fish and shoot past them to the bottom like the Lowrance did for fifteen years. Any ideas? new mounting spot? smaller profile cannon balls? thanks in advance to any and all responses