Detecting is like anything else, the more you do it the better by accident you become. You have to learn what that detector is telling you and the sounds it makes mean something. My unit is set for tone ID, each type of metal, gold, silver or trash sound different. Also like in most things, the more you pay the more the unit will do or tell you what it is your over. I have the White's DFX, was kind of expensive when I got it in 2001 but has never failed me and lets me have an enjoyable time when I take it out. I love following another detectorist and finding things he missed with his unit. When someone will say that field has be hunted out, that is where I want to go, as they are NEVER hunted out.