Today I visited a field searched many times before.Infested with small and large iron.So today I tried different settings. Sens 80 Disc0 and sounds2c I only had 45 minutes of time on the field but it produced a number of "old" signals not found before. 4 .303 bullets ,shot gun case a button and an AE4 of Constantius 2nd with the reverse of Soldier Spearing fallen Horseman During the search I determined that I was not missing any positive signals.The machine ran stable with some iron trying to creep in but was no problem.I shall use these settings again