I have a CZ6a that I tried to sell last month and I am glad I didn't sell this detector. I have had every Fisher made and I got this detector on a trade and I wasn't sure of it's capabilities as I was using a Minelab Ex11 as my main detector. Well many people will call me insane, but this detector is mighty close to the down under machine. I have found 30 wheat pennies, 1 Barber dime, 7 mercs, 5 silver roosies, and 4 Buffalo nickles in the last 15 hours of hunting. Believe it or not, I am rehunting spots that I have hunted for the last 5 years. Many of these coins were 8 plus inches deep and were found in trashy picnic grounds. CZ's have got an unfair reputation of being deep iron hogs, but once you recover some deep rusty nails, there are many traits that distinguish this trash. First repeatablility, second audio tones, and pinpoint sizing. I can almost eliminate most all deep rusty iron and if I do dig, I know it is a crap shoot before I dig. I have said it before and I'm saying it again; its hard to believe that the CZ's are early 90's technology. Fisher hit a homerun with these detectors. Thanks Dan! R.L.