Just received my Tesoro Silver Umax tonight from the UPS man. I immediately put it together and put a new battery in . I took off to the local park and hunted for about an hour. I set the driscrimination to tab and semsitivity to 9 . The machine did a great job passing on the pull tabs and hitting the coins. In future hunts I will turn the discrimination down to foil on my next hunt when I have more time. This detector is the real deal. I loved the weight , pinpointing and it lived up to what people have been saying about it. This is the first detector I've used without a screen ID. The only negative is I dug alot of screw caps . I also forgot my headphones and this little machine is loud ! I just have to get use to the different sounds it makes . I would highly recommend this detector ! Clad totals : 2 Quarters , 4 Dimes & 5 Pennies - .95 cents !