Today 25th March went to my "Buckle" field which on the last visit I found to be full of small and larger iron as well as the wanted items. So today I decided to try the FE setting of 2c which gives the sound of 2+ but you do not hear any of the iron but still can see the ferrous numbers.I searched for an hour still finding not ferrous items.Nothing major, buttons bits of lead and a copper alloy disc. The lead was a good depth and one non ferrous signal was way down in flint and stone I could not get down to it with my smaller spade. I made a note of the place so I can return. But I think I am going to need a probe when using this NEL Storm coil its very stable and deep seeking. It set it at 65 dis 0 then on to 2C. I intend to use 2c again soon.