If I want a heavy, slow sweep detector for coins/rings and deep iron (relics), and have the money/desire, then I might consider an Explorer. If I want a light, fast, relatively inexpensive and easy to use detector that is hot on low conductors, then the XTerra 70 (or various Tesoros) would be my choice. As for the primacy of Explorers.. what a crock of B.S. No detector, that I know of, excels in every situation/location. For every person trumpeting the glories of the Explorers, there's someone (equally as loud) going on about an F75, Tejon, CZ 70, DFX, and they'll also have the 'evidence' anecdotal or otherwise, to back up their claims of superiority. Just because a certain product costs more, doesn't guarantee better performance/quality/value. Anyone that thinks differently is an advertiser's wet dream. As for the XTerra, it 'might find a gold 'flake', depending on the size, but that's not the issue. What I'm talking about is sensitivity to tiny JEWELRY. You know, the small stuff with expensive stones set in them. Things like diamond studs or 18kt gold necklaces that don't have the nice big catch to trigger a detector. There are a number of people that hunt 'micro jewelry', stuff that most detectors have no real chance of finding, with great success. ..Willy.