I'm contemplating buying a Kershaw/Onion BOA folder that has an S90V/440C blade. In researching whether better to buy S30V or S90V I noticed that on Crucible's own website S30V is nowhere to be found! They have separate pages with details about many of their steels, including S60V, S90V, M2 and 154CM, but conspicuous by its absence is S30V. What's up with that??