Discrimination. Here the Tarsacci has a most interesting approach. With a strong bad soil capability and the ability to operate in pretty heavy junk comes a sort of PI hybrid feel with better target ID. So far the Tarsacci ID capability seems solid, and it deals with iron very well for something that pulls such small targets. One can argue about ranges maybe, but for an urban gold hunter the range a person would care about is pretty well defined and every good signal in that range is going to get dug. Or is it?
It is pretty uncommon to be able to pull fairly small gold yet ignore much foil without apparent consequence. And look how bad the iron can be and still hear only faint whispers of falsing. And with a little ear training, even more common junk may be passed by with a fair degree of confidence that nothing good is being left behind. Really, what more can be done?
Well, there is always discrimination. The one thing that is not quite so well defined. A person really could special focus hunt all sorts of things while quieting down the competition with a little notch. Of course every self respecting hunter would like to dig it all, but that is just not realistic some places. So, discrimination. Really, it needs to be set somewhere, but where and why for? How do you use it for how you hunt? I put it on +29 or 30, because it sounds best there to my ear and helps prevent iron wrap around. A common recommendation is -30.
How exactly the discrimination works on the Tarsacci is a little fuzzy to me, and worth understanding better. It is what is left to tackle the almost unbelievable amount of junk that sounds like gold. Some places will remain all but unhuntable of course, but Tarsacci opens things up a bit to my mind. Your thoughts would be most appreciated.