Hello everyone new Etrac owner from NEW JERSEY, most of the trash here is IRON ORE and RUSTY NAILS and lots of it. Question is which coil do I order first, the coil with the most votes is the one I will try first, then I will purchase a second and possibly a third. I will post my OPINIONS with time, please remember I am NEW with the ETrac and I look for help from all of you good people. Thanks kindly SwampeR.