Well, I'm not going to dig a hole 2 feet deep, unless I know there is already something down there I never saw before. So that Test for me is out of the Question.
I do agree Mass is Important at that Depth & the Glass would Prevent
the Halo Effect. However I believe a Tightly Packed Jar of Coins, upside down, would
show the same Mass as a Jar lid Right side up. just without the Halo
effect, leaching into the ground.
However, I still Believe an Upside Down Jar of Coins, Because the Lid would still be Leaching, would cause a Signal, on a High end detector,
If the jar was buried for 50 to a Hundred Years.
Just not as Good a Signal.
I don't want to, And Won't argue Fruther on this.
It's My Final Post in this Thread on it, BUT I do
Stick by this Belief, till someone can prove me wrong.
By Burring a Cache wait 50 years and let me try and get a signal :P
But the thing is, I Don't believe anyone would Bury a Mason Jar of Coins Upside Down. It would be too hard to grip to pull it back up, and It just wouldn't happen, because the human mind, would make you bury it right side up.