I only spent about an hour, but was pleasantly surprised as to what I could identify by ear and the readout jointly. Only found a couple coins, but hadnt really expected much because I had been over the same area two or three times recently. I'd be interested to hear from anyone who also uses the Omega in all metal mode, and which which tone pattern is used (A1 to A4). I spent most of the time in A2. Thanks, and a Happy Christmas to all.