There's a lot folks don't realize what a PI can do and basically lump PI's into being beach, surf, prospecting and relic machine.
I think the big reason folks can't past seeing this they judge the PI on the performance using the 10" larger diameter search coils.
They can be hard to pinpoint with, go way too deep and don't separate a bunch of targets in an area very well.
You take a machine designed around small gold and gold jewelry with the right size small coil like I built and its truly
an eye opener what the PI can do in schoolyards, parks, picnic grounds and small foil infested areas. With my small coils I can pinpoint dead on most times
as if I had a VLF machine with a concentric coil. If you can't hit the target with a probing tool, it's probably junk or a coin on edge just off to the side.
I am tickled pink that there is no competition for me here. No one has really caught on to hunting areas or how to hunt areas that is deemed not hunt-able with a PI.
PI's are not for everyone, if you not a trash digger, love your VLF with ID screen with target ID, the PI probably is not for you. If you are a VLF beep and dig person that doesn't use a high discrimination setting, they PI might be a new tool option for you. PI's do take about 40 hours to really get the hang of whats going on and how the multiple adjustments interact with each other. Once you reach the understanding point, I found my PI can be literally a turn on and go machine 90% of the time.
Thanks to Gunnar's videos, you get to actually see a person new to a PI use finding that the detecting hobby is like a fresh new hobby.
Exciting with possibilities of hunted out areas are not really hunted out. There's gold to be found. The main reason for building the
Mirage is to find the gold left behind by others. May not be as deep or sensitive on silver, copper or clad coins as a VLF, that's OK, it doesn't matter
when your after gold. For those others metals we have VLF machines. My PI is no slouch when it comes to getting clad to about 7". Pictured below is mostly what I found last year
in so called VLF hunted out areas. Pictured are nickels, dimes, quarters, $1 and $2 coins. About $100 in $1 and $2 coins are not pictured, since I clean those up after hunting and use them as spending money. I do dig pennies but about 1/4 the amount I would dig with a VLF. That's fine with me, I hate pennies.
My PI is not magic just another tool.
If you are looking for a US mass produced PI to purchase take a good look at the White's TDI along with the round 7.5 Aussie Mono Coil.
You might just leave your VLF at home................