Normally I set my disc at 16 mine is a V4, sensitivity at 99 and 4tones and nothing notched out.Today I thought I would try something different. I set my disc at 1 and notched out iron 4tones. It seemed to run a little different I would get an iron grunt now and then and it seemed more sensitive to small foil also seemed to id modern tabs better and not as nickels need to experiment some more with these settings but so far I kind of like them.