Agreed! I think that, overall, S30v is the best steel on the market (VG-10 a very close 2nd). ZDP cuts like a lazor, but is also a very hard steel, plus I don't have a lot of info on it as it has only been used by Spyderco for a little over a year. The Caly jr. in ZDP was the 1st model to use ZDP (all ZDP models, so far, have been sprints.) Mine was made in Oct. of 05. The Caly jr. and Delica in ZDP flew off the shelves. Not so fast with the Horn, though. I have no idea why not because I love my ZDP Horn!