Hi Guys, Went out after work on wednesday night until dark, 10pm. Went to a spot I have been over....I cant remember how many times with my GP 3000 & a number of different size coils. Have also been over it with the GPX 4000 & the 4500. I have pulled off well over an ounce over the times. The best being with the GP 3000. The last time, B4 wednesday night, I went over it with the 4500 I got nothing. So thought that was it. As I walked past this spot on wednesday I thought...why not. I had been over it a few times with the GPX 4500 & the 11" commander mono & was no longer getting anything.
Well bugger me...got the fainest of whispers. Was it a signal or just a bit of ground noise? Scraped away some top soil & the signal improved. Got down about 8" & was into a soft flakey schist & bingo, out came a small piece. You ripper. Scanned the dirt pile before back filling the hole & blow me down, another nice mellow signal & another small piece. Ha, choice. Scanned the hole again & got yet another mellow signal & another small piece. So I opened up the surrounding area a bit more but got nothing more. So 3 little bits in the one hole.
Then moved to a spot where the old timers had piled up a shallow layer of rocks & bigger stones on top of a bed rock area they had exposed. I had got two good size pieces from under this pile with the GP 3000 & the 11" commander mono so though I would try with the 4500 & the same coil. Ended up getting two more bits in the same hole once I got down a bit on another very faint signal. They were amonst the pile of stones & not on bed rock. Then moved to another pile & got a loud signal that I thought was going to be rubbish but was just over 1 gram of gold. Again it was in the pile of stones & not on bed rock.
Now why had I not got these pieces before??? Time & experience has thought me that you never get all the gold off a spot on your first time there, or even the 2nd or 3rd. Why??? There are many things that can have an effect on the detector & your detecting on any given day. Heat, Sun, Moisture, mental focus & consentration, detector tuning & just where you wave your coil.
Good luck out there
JW :)