I just got my ace 250 and it has been fun, but extremely frustrating. Yesterday, I was out for nearly two hours at the beach (off Lake St. Claire). I had plenty of hits but there was a single beep on the first pass and then I couldn't get another contact when I swung back, even when I went 360 degrees around where I thought the hit was. This happened throughout my time there, I dug, and dug, and dug.....but nothing turned up, not tabs, not bottlecaps and not coins. I tried everything I could think of to pinpoint the hit (sensitivity, mode, pinpointing, etc) but each time it was the same. Does anyone have any idea what I might be doing wrong or what I might do to use it more effectively? Thanks
Patrick
Patrick