I just can't get the four tone machine thing down. I have a freshly certified (by Tom Dankowski less than 6 weeks ago) 1021 Los Banos CZ3D that I qoute from Tom's emails to me,,,,, "is in great shape" inside and out and will hit "a clad dime at 12 inches" The coil had a bad connector on it and I had Fisher repair it and check it over,,, it's 100% and this machine will not get any better than it is right now. 700 pluss shipping,,,, I paid 550 for the unit 100 for the cert and 60 for the coil repair,,,, I just want to break even and see this machine in capable hands,,,,PM if interested