Interesting... I never have thought of it like that. Clean up the area = help the environment, you and other nugget hunters out. Maybe I will hit one area, stick with it until its completely clean, map it, then go over to another area. Couple more questions... 1. We are thinking of getting a VLF for assistance with the 2100v2. Is there any VLF with decent to excellent iron discrimination? I see the the Minelab Eureka Gold and the Fisher Gold Bug 2 have iron discrim features. 2. Just out of curiosity, are there any detectors out there with excellent to phenomenal iron discrimination (the mother of all questions)? 3. Give me an examples of quality 'High-end' nugget hunting VLF's for highly mineralized conditions? Thanks a bundle, Nathan