i have a fisher gold strike, paid 899.00 dollars for it in 2004 and its been a fantastic detector. but im kind o0f curious as to how you can set these detectors to look for gold nuggets or how to set it to find nuggets without the rest of the junk. so far, ive managed to block out iron objects but still pic up some. like bullets or cooper does anyone have one of these machines they can help me get pointers on setting it for gold prospecting, would really appreciate it