I've had several knives made from it,and mostly have had good experience with it.Except for one knife which was'nt mine.A friend had a late 60s era Buck 102(Woodsman)that he wanted me to sharpen for him,what a nightmare!The previous sharpener had taken it to a grinder,of whom I could tell had no clue as to what he was doing.I used my diamond bench stones on that sucker and it still took me forever.On a lighter note,does anyone have a GEC slippy made from 440C,and if so,do they like it?