Hey Jen, I have a GPX5000 that I bought from Rob...it was his personal one. It is probably older than you want though, 2012, has about 4 coils and Goldscreamer Powerpak. I use it mostly in Az. which is seldom because I don't get over that way often. However guys I go out with in Ca. do well with theirs, Pat K. and others, but to be honest they are simply more experienced than me and they handle the high mineralization here way better than i do!