The pure fact of the matter on MDing is that it is an inprecise science...Different detectors have a different probabillity of showing a target for what it truely is...With your LCD screens without VDI #s, there are only a limited number of slots to put an endless number of possibillities into. The pure truth is that Gold rings are electrically very near to pull tabs, screw caps, zinc, foil, and iron even. Now a detector with VDI #s might give you a little better clue as to what is really under the coil, but it too is NOT flawless. It all comes down to experience with your detector, and the willingness to dig those iffy signals, because as a famouse treasure hunter once said, "You just never know..."
The most expensive detector on the market is often gonna find less good stuff, than the cheapest detector in the hands of a well experienced hunter.
Just let me get 50 yards behind the new guy with his $1600 White's Vision, and I guarantee you I will smoke him out with my $100 Modified White's Classic II SL (BTW,m I would love to own a Vision).
I thought it was funny. In the garage of my daughter's place, there was an old set of witching sticks (divining rods)...I picked em up and said out loud "Look at this HOODOO!!! These things don't work!" Boy was I surprised as I grabbed em and started walking across the yard and they crossed over where I know the sewer and water lines were, then they crossed again as I passed em over a small drill pree that contains a lot of metal...I found out that they do INDEED work...lol
I have a litttle witch in my blood anyways...Looking back in my family history, Anna Belle Lemp was burned at the stake in Mass. for being a witch...lol
HH,