I have a CZ-5 w/metal cuff and see posts all thru here how this machine is supposed to be less sensitive than the "newer" style CZ. I'm constantly finding stuff my other detectors won't touch with my supposedly less sensitive CZ w/metal cuff. I didn't find this out until I posted mine for sale and for the life of me I can't imagine the newer style going that much deeper than mine-if so it must be super deep. Can someone clarify this and how much more depth is it supposed to have? These posts have left the impression that my CZ is not any deeper than a regular detector. Thanks