Learning more each time out with the new machine. Have been use to digging iffy signals with the Etrac and occaisionally coming up with a coin, but not with this machine. All iffy's have tuned out to be rusty nails, and the higher the sens the more iffy's show up. Today I hunted a small park that Darrelld has really cleaned out but managed to get 1 wheatie, 1 injun and the merc. After I got home I went to the test bed and tried different sens settings and have come to believe 20 to 22 is the most reliable in this ground. If it rains as forcast this weekend I'll get to give it a good workout at a virgin yard I have lined up.