with the 5X10 cross gridded after detecting with the 3kHz coil and a very small area with the Quattro/8" Minelab coil. I had pulled lots of targets from this area, so imagine my surprise. I don't consider myself a sloppy hunter and the area has lots of iron, so I think the 18.75 frequency is a better choice. I just got a 6" DD from DeMarco and hit the same area for 3 hrs yesterday and pulled out even more clad and junk jewelry. Slow hunting, but productive. The more I use X-70 with different coils, the more I like it. I may get the big 18.75 and relegate the Quattro/large coil to backup status.I apologize for the photo. I had a better one that wasn't cropped at the top, but couldn't use it. Thanks to Digger for the GIMP link to decrease the file size.