I use to find the deeper Minnie Balls others could not find by using a simple trick with my Garrett Master Hunter. I would concentrate on the meter. If the meter needle barley moved I would dig. Nice
It was a Metrotech 220 A. No, but you can find them pretty easy still. I have tested many hundreds of detectors. They may put me in the Smithsonian as I grew up in Washington D.C. Nice.