well kodiakusa, your're on the right path. the very center of the coil on the qd2 is where you want to dig. iv'e got a qd2 as well, it's a good machine so long as the coil itself doesn't get wet. if a signal won't repeat, then it's a dud. if it sounds crackly around the edges of the beep, it's likely steel or tin junk. if the beep blows up your headphones, then it's probably a beer can or the like. good advice from all three fellas. chances are when you've "lost" the target, it's almost always at the top inside of the hole or in your dirt mound. next time that happens, turn your disc. all the way down and do a quick re-sweep. it just takes time and some practice, but i'm sure you'll get there. hope these little tips on the qd2 will help. have you thought about building a simple coin garden? hh,