ghound
Elite Member
Most folk know not to get sucked into the 'air tests = depth in ground' scenarios.
I could show you machines getting silly 20"+ deep air tests on coins that they can't get at 9" in ground.....
I could show you machines getting silly 20"+ deep air tests on coins that they can't get at 9" in ground.....
I mostly agree, but still very impressive on a dime...let alone what it would hit a quarter at. Good insight on possibly what newer 2017 technology is capable of too compared to older tech.