Thanks for sharing your experience with the 5000 and coils. I've been working with the DD only and plan to learn it before I put the mono on. I'll get my hands on instruction in November with Bill or Mike when I get there.
I live in Georgia, 50 miles from Dahlonega and have been out 2-3 times so far and will be out again later this week a couple of times. It's different here than the desert....
Thanks again for the advice!
Looks like the wood we find up in Virgin Valley hunting for opal. In that area we have been told by the guys running the mines that this is premineralized wood and not fully petrified yet. If your near a volcanic area could be some opal under your feet. Nice find.