I think I'm really getting the"hang" of this 3D.My nickel count has gone way up.I've found lots of hi tone nickels and lots of nickel foil bounces that are nickels.In my ground I can't run the sensitivity over 4 or it falses all over the place.I still seem to get good depth though.I dug a wheatie this afternoon the was slightly deeper than the lenght of my Lesche digger,9".