Yes Rick
It is kind odd that it works that way...I,ve tried using it in discrim mode....I just can,t do it.!!!!
I find it too noisy and hence slows down my hunt significantly as I,m continually checking out all the beeps that are not hits..just noise.
Maybe it is because ALL METAL MODE is what I got used to when learning the machine.
AND... in DISCRIM mode I get lot more high number hits that are nails or highly corroded iron....but in the ALL METAL...they will bounce around from low to high so I don,t dig them as I know what they are...but in DISCRIM they will show a high number that doesn,t bounce from high to low.
And the ALL METAL IN BOOST is the most powerfull mode.
Also....when in ALL METAL MODE...the detector seems to pick out the good signals from the trash just fine..I have yet to find anything in a junk pile that DISCRIM mode would pick up and NOT THE ALL METAL MODE.
I,m a newb..so dunno if this makes sense