Hey all.I have been working under the bleachers of a large high school.I am using my time ranger, with the 4" coil and digging all non ferrous signals.I started reworking an area that I covered two weeks ago,and it's amazing how many low conductivity targets(nickles/pulltabs) I missed. I know my chances for gold are going to get better.The sheer volume of targets is mind boggling,in one small section I dug 152 pull tabs. It will take a long time to work this site,but I love this type of hunting. Happy hunting.