I get tickled every time I read a bad review of the Gold Strike. It has to be the absolute best gold finder ever made!!! I will hunt behind you with your gold bug or GPX5000 and dig gold all day long! Nothing else on the planet will find very tiny pieces of gold, even under hot rocks like the strike. So why the bad reviews? That stupid frog sound in your ear all day long. It will agrevate a green fly! The guy that invented it was both a genius and an idiot. Solution? Have a ham operator build you a "razor sharp" CW filter for 1000 HZ that passes only that tone. No more frog sound just nice quiet operation that only sounds on targets. Once "cured" of that awful noise, it is a pleasure to use. The high speed auto ground balance will keep you digging very tiny pieces of gold all day. You can litterally hunt behind a PI machine or a gold bug and stay busy digging what they missed!!!!!! I have owned them all, and nothing, I mean nothing, is as good as a strike!