This morning I decided to try my old standby park. This place is hunted hard by every detectorist in my area. I can usually find a wheat penny or two, but that is in four hours or so detecting. I was going to use my "new found" knowledge of what these deep coins sound like. The first hour was nothing but deep trash. I did notice that trash targets might high tone in all directions, but the numbers vary by sometimes 25 numbers. I can't resist the tones so I dig them even though I have a feeling they are junk. I finally got the signal I was looking for with weak, repeatable high ticks and numbers staying in the upper 80's. I found two wheat pennies in the same hole at 9 inches deep. About one foot away, I got a deep signal that bounced from 29 to 70. It was about 8 inches deep and pinpointed(sized) like a coin. Sure enough from 8 inches a 37 Buffalo nickel with a clean date. There is something about Fisher detectors and deep nickels that I have found. If you get a nickel number and a higher coin number that is deep, dig it. My F5 and the many Coinstrikes that I owned did this exact same thing. I found another dateless Buffalo about ten minutes later and it did the same thing. It too was in the 8 inch deep range. My last older coin was a 1920 wheat penny from an insanely deep 10-11 inches. A very weak, but repeatable signal and again high 80's numbers. It's going to be a long winter waiting to use this lethal detector again. I hope I don't forget what things look and sound like.