I had a GPX-4500 and me and 2 mates had found an area we would try. We hit the grounds swinging and we started to pull out gold left right and center, the detectors my mates use are a SD 2000 and a SD 2200v2. At the end of the days we had been finding 10 grams to 18 grams a day. We found a lot from 0.19 sub gram up to 15 grams. 1 mate had found 6oz (SD 2200v2) the other about 4oz (SD 2000) and I have found about 6oz plus (GPX-4500, GPX 5000). I sold my GPX-4500 and 2oz of gold and brought the GPX 5000. I love the GPX detectors as I have had so much succsess with them and still am. I have sold 122.2 grams since I'v hit this area and still have over 2oz. Since owning the GPX 5000 I have been going back over old ground and picking up heaps more. Stoppsy - Victoria, Australia