I went to scope out a park to take two characters to, and did the Sixties knee walk again. That's when you get down and don't get up, just keep digging. Amazing. One hole gave up Eight nickels, 1 in 5 cents were wheat cents.Virtually every hole was a double..Got an insect ring, saw a small blue stone in the hole,,found out that was part of the insects head...Thinking , Wheat cents, no silver, how do you explain that? Then I got a 1928 Merc.. Ashamed, would go back over a hole and get another signal.(MISSED)..Several passes across the wasteland and nothing..Totally clean...So the Silver U Max has about 12 hours on it since the first of the month..I am about the buck an hour mark.( $12.92) Total silver two rings, one SS St Chris medal, 23 cents in silver coin,( 3 cent Sil, barber, and a merc) I am reading all this advice on upgrades, also thinking, maybe I should trade "SIR" in and go one step up.. I'll wait, am learning the tones (I don't use phones), and I think the detector is just starting to break me in,,Left with plenty of signals still there......,I was tired,,,,,Excellent trip..,,,cordially NAD