You just can't beat the discrimination characteristics of the XLPro. Pulled these out of an old town site, literally filled with nails, aluminum and scraps of old tin roofs. You have to listen to the detector and when in doubt, take a look at the meter. But at the end of the day, the XLPro always comes through. May not be a depth monster, but it sure knows how to discriminate. JMHO HH Randy