The tiny coin below was found today ( an Elizabeth 1 three farthings i think , weight 0.60g) at around 2 inches deep in moderately mineralised ground with a 2 way red DDM, settings were dual tones off, sensitivity 12 o clock, discrimination to minimum full anti clockwise but with toggle switch set to left - this provides minimum disc just enough to remove small nails and most coke/hot rocks. Nothing special about that you could say, but when checking the hole in all metal to check nothing else was there, only around 4 inches from the edge of the hole and within one coil width was a full on ferrous target full on Blue DDM which turned out to be a rusty nail around 1 1/2 inches long. This machine pulled out this tiny coin with a very clear signal with no hint of ferrous.
I cant praise the performance of my Nexus enough, and have owned several top of the range detectors over the years, these do not even come close to the capabilities of the Nexus MP.
It does take time to master this machine, but believe me its worth every minute and every hole dug in the learning process.