Nope, but I am on the Board of the FMDAC [Federation of Metal Detectors & Archaeological Clubs, Inc.] Not of profit organization, and we have fought many battles over the last 20 years. Check them out, FMDAC.org or on Facebook.
No? Experience ? .....wait " we have fought many battles over the last 20 years" so.... if you guys don't find anything you play paint ball?