I got my F70 at the beginning of summer and have used it several times coin hunting and love it . I am finally going to get to use it to relic hunt(civil war) Saturday and I am curious about the settings other people use. I have hunted this area 5 times w/ my AT Pro and rack up every time(Minie balls,buck and ball, percussion caps,button,friction primers..) The soil registers around 87 on the Pro when I ground balance and I am finding everything about 4-6 inches. Hardly any trash at all except for the occasional shotgun shell..Thanks in advance for the info!