Went down to the local park last evening to have another shot at the silver in the trashiest part of the park running auto -3. All I gotta say is it works! The 1920 merc was around 6" deep and the 43 merc was around 5". I've been over this area with every detector I've ever owned, and with the etrac with a 5" coil, the sef6x8, the stock coil and a sef10x12, running auto +3 I'm sure. Would any of these coils picked up the coins running auto -3...I have no idea, but the EQ2 6" coil is pulling them out. Most of the time sensitivity was running 17 to 19, running high trash and difficult on. Its raining this evening so I'll have to wait to go back and have another go at it. Thanks for looking. Ken-ks