With the F70. The High Sands are the big dunes that are on the edge of Lake Michigan. They are a very steep and physically demanding way to hunt. They are also very old, so I was after old silver, I got a little over 100 coins out of there, all clad, and found this letterbox. Inside was a notebook,pencil, and instructions for the finder to write something and rehide it. The posts go back to 03 up to 2010 and were from all sorts of people. Just another sign to us detectorists that try to find locations where people once were. I'm gonna spend the weekend on the flat, schoolyards mostly I recon, let my hip joints recover, and try to rack up some numbers. I can say I think a lot about all of your posts and the various styles you all have for hunting when I go out, and try to approach each area with how you would do it in mind. I'll break 8k coins this weekend with a good hunt or two. 
Mud
Mud