I'm trying to decide if I should upgrade from the DFX to the Minelab, or go with the Excaliber. I found a few nice rings with the DFX on the beach this summer, and I can see how this could get addictive. I have found 8 seated dimes with the DFX, lots of mercs and Barbers, a half reale, etc. I hunt Prospect Park in Brooklyn New York, and Ive seen a few guys pull lots of silver out of there consistently with the Explorer. Water machine or better coin machine? Desmond