dowser, I'd love to work with you on this in some fashion. Not sure how this would work, tho. I'm pretty convinced that 99% of popular treasure leads are bogus, the vast majority of the old treasure mag articles were works of fiction. So if I hand you a treasure lead, what would you do with it? If you determine "no signal," how can that be verified as correct? If you get a signal, dig a hole, and nothing is there, what does that mean?
My preference is always with test targets. My experience is that pretty much every dowser works with test targets on a regular basis, yet when it come to demonstrating dowsing to me they usually don't want to go that route. But test targets give definitive answers. They are definitely there, and either you find them or you don't. I own a 10-ounce gold bar, a 20 ounce silver bar, and around 50 lbs of silver coin, but I always encourage dowsers to provide their own targets they are most comfortable with.
I assume you're in Michigan, and I'm in Oregon & Texas. Long way to go for a test. I do have plans to be in Michigan in the next year or so, maybe we pick this up later unless you do map dowsing. I'm open to suggestions.