Hi blee-ohio . Good questions. And in each case, after digging them , I asked myself those very questions: Was it a TID consistent with whatever the TID is in air tests ? Versus skewed d/t depth, angle, co-located targets, etc....
And the answer is this: Since they come so-few and far between (15 in 40+ yrs. of md'ing), then it's simply too infrequent to develop mental patterns And any attempt to review the TID it had given IN ARREARS, is always "too little too late" I suppose. Because you'd simply be subject to "memory bias". Here's what I mean by that:
Every time you and I stop to dig a target, we subconsciously think to ourselves: "This one sounds different" (or "this one has a $10 or a $5 TID, etc....). Then when it turns out to be junk, or a bullet shell, or a tab, then we think to ourselves: yeah, come to think of it, it *did* sound sort of junky. But ONLY when the object turns out to be a keeper (gold coin, gold ring, etc...) only THEN do we remember our premonitions and think "aha! I knew it!". When truth be told, that's just selective memory trick at play.
I will say this: The last one I got was a $10. About 6 months ago. And in the area I got that, we were getting a lot of .32 cal. casing bullet shells. And I distinctly recall, as I got ready to dig the $10, I was thinking to myself that it was about to be another of of those copper casings. Because they read about zinc or so, just like a $10. As to whether or not it reads "slightly to the left" or "slightly to the right" (if using the Explorer 3d axis), I would say, sure....... there's probably a tonal or TID difference. THE PROBLEM THOUGH IS: That *so too* is there a slight difference between every single junk objects. Even no two .32 cal. will probably read *exactly* the same either. Depending on tilt, depth, proximity to other targets. etc....
If anyone tries to tell you that gold coins or gold rings "sound different", they are merely victims of the selective memory bias trick. And if you follow them around, you'll see that ultimately, they're just running random odds as well.
Thus the trick to gold coins isn't to concentrate on where they read on the TID (other than to pass obvious trash signals if you've got a million signals to choose from). But rather, the trick is: Location location location. If you are in western states, like CA, OR, NV, UT, etc... and in an area where coins from the 1850s to 1880s are showing up, then you have a fighting chance. Especially traveler stopping spots like emigrant camp spots, stage stops, etc....
And the answer is this: Since they come so-few and far between (15 in 40+ yrs. of md'ing), then it's simply too infrequent to develop mental patterns And any attempt to review the TID it had given IN ARREARS, is always "too little too late" I suppose. Because you'd simply be subject to "memory bias". Here's what I mean by that:
Every time you and I stop to dig a target, we subconsciously think to ourselves: "This one sounds different" (or "this one has a $10 or a $5 TID, etc....). Then when it turns out to be junk, or a bullet shell, or a tab, then we think to ourselves: yeah, come to think of it, it *did* sound sort of junky. But ONLY when the object turns out to be a keeper (gold coin, gold ring, etc...) only THEN do we remember our premonitions and think "aha! I knew it!". When truth be told, that's just selective memory trick at play.
I will say this: The last one I got was a $10. About 6 months ago. And in the area I got that, we were getting a lot of .32 cal. casing bullet shells. And I distinctly recall, as I got ready to dig the $10, I was thinking to myself that it was about to be another of of those copper casings. Because they read about zinc or so, just like a $10. As to whether or not it reads "slightly to the left" or "slightly to the right" (if using the Explorer 3d axis), I would say, sure....... there's probably a tonal or TID difference. THE PROBLEM THOUGH IS: That *so too* is there a slight difference between every single junk objects. Even no two .32 cal. will probably read *exactly* the same either. Depending on tilt, depth, proximity to other targets. etc....
If anyone tries to tell you that gold coins or gold rings "sound different", they are merely victims of the selective memory bias trick. And if you follow them around, you'll see that ultimately, they're just running random odds as well.
Thus the trick to gold coins isn't to concentrate on where they read on the TID (other than to pass obvious trash signals if you've got a million signals to choose from). But rather, the trick is: Location location location. If you are in western states, like CA, OR, NV, UT, etc... and in an area where coins from the 1850s to 1880s are showing up, then you have a fighting chance. Especially traveler stopping spots like emigrant camp spots, stage stops, etc....