Re Tesoro users: I own a Tesoro Silver sabre u-max detector (I bought this brand new in 2001,6 yrs. old now.) This Tesoro is a audio tone machine (no target id display). I've found gold twice in 6 years. Once a woman lost her 24 kt. gold ring,and I found it by putting my discrimination around 3 or 4 setting (low discrimination setting) and I put my sensitivity at 7 or 8 (setting sensitivity too high on my Tesoro,makes it chatter!). The other time I found gold was: a 14 kt. gold cross (discrimination @ 7 or 8,and sensitivity @ 7 or 8. Gold rings,jewelrly varies widely among discrimination settings,depending on if it is a man's gold ring,or a woman's gold ring,cross,necklace,bracelet. I have audio tones on my detector,to find gold,I've heard you have to dig all low (faint ) tones and trashy tones (chirp sounds,like pull-tabs,bottlecaps,cans,etc.) if you turn your discrimination too high,or turn your sensitivity too high you'll lose a lot of nickels (even Bufflao nickels,gold rings,jewelrly,etc.) silver jewelry most of the times will still be heard at high discrimination ( 7 or 8 setting). You basically have to do a test in your yard with nickels,pulltabs,bottlecaps,jewelry,etc.and also do a lot of experimenting on your own. They don't make my tesoro silver sabre u-max anymore,I think It was replaced by the Tesoro silver u-max. Try the Tesoro silver u-max,it only costs about $240 new,with a lifetime warranty too! Tesoro's have always been proven to out perform other detectors in trashy,iron infested areas! Hope this helps!