I finally got out with the Quattro. And it isn't as much like the Sovereign as I thought it would be. It will take a bit to get used to. I was in Ring and Jewelry mode and running sensitivity on 14, I kept finding those little round sinkers they use for fresh water fishing, I used to find them with the Sovereign and Aquastar pulse also. They usually bounced around in in the low teens range with the Quattro. Hard to find as the depth reading would show them as much deeper than they actually were and they were usually about 3-4" deep at the most. Had to use pinpoint most the time and with the 10"Platypus coil, it worked pretty well, and showed them as near the top. I was getting too much foil and it was reading all over the place, more than I ever noticed before. I will have to try to figure how to avoid the stuff. I wandered in off the beach area, to a tree line and noticed many double hits also, which were mostly foil, but one stood out as it was more solid and smooth, but 2 different tones. Dug down slowly with a screwdriver as I was mostly trying to get the pinpointing down with this detector, and found a 1920 cent at about 8", went over the hole again, and just over a couple inches was another high tone and 30's number and dug out a 1947 dime which was just about the same depth. So in my deduction so far, this machine is a bit hard to lock on the numbers with, as it is jumpy, but it seems mainly with junk stuff, and it will go deep, pinpointing isn't bad, but then it may depend on the coil size also. I will get out again this week and give it another try. It isn't as easy to use as the Sovereign, and now I can see why so many give up on the Explorer, being it is supposed to be even more complicated to use than the Quattro. It will take lots more practice, which in a way is a shame. I don't think most of us buy a detector with the thought that you have to become an engineer to use it right. I guess in time they will get these more elaborate machines to work smoother and with less fiddling with the settings and a more positive lock on readouts. Maybe they have to increase the readout range which would define the object even better. Anyhow, it is interesting what they have come up with over what was being used 25 years ago.