I just received my F5 yesterday. It is my first metal detector. I am happy with it so far, and I'm sure I will be much happier when I learn how to use it properly. So far I have been to an old abandoned house in the woods, a dry creek bed and a forgotten 1700's-1800's cemetery. I have found nothing but trash. a few modern coins, but mostly just junk. I have tried discriminating and all metal modes, seems like the places I have been so far are just full of cans and fence wire. Is there a problem with my technique, or are some sites just not good producers? By the way I dig almost everything right now just to figure it all out. Any tips would be appreciated. Thanks in advance.