Steve,
I finally joined your forum, which I enjoy reading! Your statement above about hunting couples is so true. Both Robin and I, swing GPX's and know the ins and outs of them very well. Every now and then, we'd find a very small nugget (2 grains) and some small quartz and gold piece or host rock species with our GPX's. Knowing what type of gold on a giving patch would tell us the best coil to use for the day's hunt. But, the patches with the course, rocky and dink type nuggets, I knew we couldn't hear the gold our coils went over no matter what timing or coil you used. This new Minelab 2300 is no gimmick, it produces where all other detectors struggle to add to your poke. Yes, my GPX 4000 is for sale! Until the next hunt
LuckyLundy