I have only had my EX II about two weeks. At first, using smart find at factory presest, all I could hear was a jumble of tones, sounded like Jimmy Hendrix playing a tone machine. After some experimentation I finally put it in manual sesitivity turned it down to 12, and adjusted the theshhold to barely audible. Bingo, I can now hear the momentary nulls as the detector rejects discriminated targets, all that noise is gone and the tones are smooth and stable. It was like a different machine. I have only made one find with this new setup, but it was a 1911 V nickle(the only V I have ever found in 20 years of detecting) and it was at 8.5 inches, in an area that I have used several other detectors over the years. Being able to hear those nulls seems to be the key. If I going the right way here, I intend to start making adustments to the other settings one at a time untill I get it optimized. Am I OK using the above setup, which I know will vary some from the above based on location, as my baseline setup to learn? I can use any suggestion or comment anyone would care to offer. Thanks ---John --just wanted to add, when the setting is in auto sesitivity, the adustments to sensitivity seem to make no differience, but in manual it gets rid of all the clutter.