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Steve H has talked about the value of VLF machines many times, but here's my own new experience. I was bored during the holidays with time on my hands for detecting, alas my GPX is still at the Minelab detector Doctor. I decided to take Steve's sage wisdom to heart and give the Gold Bug 2 and 6.5" coil a proper go. I bought the GB2 from Steve at AMDS last year and had it out a couple times, a few crumbs here and there. I just never took the time to really get to know the detector. I know a weathered little valley down Yuma way, where the oldtimers drywashed the hell out of every wash and gulley. A couple years ago I pulled a sub-gram nugget off the slope with no more than 6 inches of dirt and gravel to host rock. I figured that would be prime ground for the GB. I planned an overnighter so that I could get the most out of detecting time, only to discover I had forgotten my headphones. Oh well, the GB has an external speaker, not ideal situation but tolerable. I rigged a neck strap for the control box to that the speaker was closer to my ears. That setup was fantastic, I would highly recommend it even with headphones. You can wave that wand with the little coil all day without any arm fatigue. I found my old dig hole and started beeping. Within minutes found gold and some decent pieces. Over the next 2 days I found 38 pieces in a band about 20 ft wide and maybe 100 ft long. I stood on the hill and looked at my gravel scrapes and the band was plain as day. There were a few oldtimer exploration holes nearby, all into a seam of red looking ore. I checked their tailings, lousy with iron trash from blasting caps and such. The photo shows the gold divided into categories. The biggest are in the .5 to .7 grams. The next size is 2 to 4 grains. The next size are sub-grain, 12 of them weighed 4 grains. The last ones with a ballpoint pen for scale are so tiny the whole lot won't register on my scale. What I learned. The GB2 is a fantastic machine in the right circumstances. In moderate ground it really has to move way way slow. The threshold autotune really needs time to catch up going over mineralized ground or you're going to hear far too many beeps, geeps and groans. Slow that bad boy down. The Maxed Out settings are the ticket to hear those little bitty ones. Iron discriminate will probably lose you gold. It would be a difficult machine to actually search for new spots. The coil coverage is so small and you have to move way too slow. It's suited for ground where you already know there is gold and can concentrate on low and slow. Like most of you, I enjoy the hunt. Sure, I wish all those nuggets were all in plus gram size, but I had a great time chasing those crumbs. Bravo Zulu to Steve H. for sharing his wisdom and knowledge for all things prospecting.

The GMT with small coil is very, very close to the Gold Bug 2 in performance on tiny gold. When Fisher discontinues the Gold Bug 2 it will be a boost for GMT sales. The GMT, however, has a better balance of performance on both tiny shallow gold and larger gold at depth. The Gold Bug 2 is better for dedicated tiny gold sniping but I would use my GMT for more general type nugget detecting. It blows the Gold Bug 2 away for depth on larger nuggets in mineralized ground.