This is something I use sometimes to help me decide to dig or not. It might give you another diagnostic option.
I switch to All Terrain High Conductors to investigate a questionable target that could be a piece of high tone falsing iron. I have ATHC setup with the same 5 tone audio as All Terrain General. If a deep target is giving me enough high tone audio responses to possibly dig but I am not sure I just hit the settings button and go to search modes-ATHC and swing over the target from the exact same direction. If the high tone audio is gone or not as good and I am getting some red numbers I may walk on. If the high tone audio is still good but goes away with even a slight turn on the target (less than 45 degrees), I will also probably walk away.
I don't hunt all the time in ATHC. There is just too much iron mineralization here and that makes mid and low conductor target responses very iffy. I am always looking for gold jewelry too and I am older and hunt time has to be optimized so AT General is the best option for me.
Anyone that has read my posts knows that I have had incredible results with the Manticore and Deus 2 with minimal settings changes using their General programs right out of the box for finding deep edge of detection high conductor targets in moderate to high iron mineralization in public parks that supposedly were hunted out as far as older US silver coins. That is still happening. I may miss some here and there by thinking they are iron. However I will take a 50/50 chance for a silver coin all day. When I am using these detectors for deep silver the iron to silver ratio for what I end up digging is roughly 3 to 1. The wheat penny, Indian head, copper memorial ratio to silver is more like 10 to 1. So digging a lot of deep pennies instead of silver is more of an issue for me than digging deep iron. Using ATHC can help with that too since it usually tightens up the target IDs.
Have you tried ATLC and then switch to A THC to discern iron ?
Just curious.
Being nearly bed ridden I've hardly gotten past the front yard with my Manticore and Legend.
I wish somebody would try the old screwdriver trick and report how it worked for them.
Saved me from digging a lot of iron back in the day.
You want to be within an inch or two of the target.
Most of the iron I dug went away after I opened the hole. I didn't dig one coin that day, not even a screw cap,,all iron..I shoulda knew when the signal went away after I opened the hole it was all iron, but after the work of doing that I wanted to see what was in there..I guess I'm gonna try to trust the machine after the holes open, if it disappears I won't even turn the pp on.
Problem is I've had a lot of machines that wouldn't see the coin after the hole was open, but id get in there with the pinpointer and I'd find it..So it's hard not to go in after something
Your digging tool broke the halo.
Though when that happened the good target usually spoke loud and clear.
The only time I've experienced loosing a target after breaking ground.
Was when the halo was caused by a tiny piece of iron that completely dissolved.
Like wire or small nails.
After breaking ground the target would completely disappear.
We used to call those ghost targets.
So many people thought their was something wrong with their machines.
That's been my experience in the US anyways.
With American coins over the last 50 years.
Don't know about coins from Canada or Europe.
Anyways.
Wishing you better Luck.
Now I wanna see some Gold.
Silver would be good too.
Reading your stories is about all I can do anymore.