I only had 45 minutes to hunt so I went to an old school site my friend and I pounded last year. Hunted an iron laden area, used the 2 tone mode and dug all non-ferrous targets. Found 8 trash targets and 3 good ones. The merc is a 1917s and the gold item is the gold-plated top of a fancy pencil. I've found 2 at this site. I've got a lot to learn about the F70 but I really like it so far. It has found silver at this site the last 2 outings. The settings used were sens 70, speed default, no discrimination, threshold 0, and 2+tones. The ground must be nasty as the GB reading was in the 90's.