I'm getting ready to upgrade my Discovery 2000, its been fine for junk and clad and even some cheap jewlery, but I want something for deeper penetration, one that will work on dry as well as wet sand; salt and fresh water, and would be suitable for using to find gold in what ever form. I'm not much into relics right now, but perhaps in the future if I end up moving out of country. I know there are a thousand opinions from every tone as what's their best choice.