I played the number game with the Buck 110, wanting something better than their standard 420HC (Rc = 58). I've tried numerous BG-42 Custom Shop 110's as well as S30V and CPM154. To be totally honest, there is something to be said for their basic metal. The 420HC holds an edge an appreciable fraction of the best of the others, yet re-edges on a Sharpmaker in a fraction of the time - and to a razor edge, the likes of which the others can't, at least in a reasonable amount of time, attain. I guess Buck's 420HC is their equivalent to CRK's use of S30V. I know the 110 has a long & thin edge, making it a heck of a slicer, but that Bos heat-treated 420HC in an American-made knife you can buy for $26 at WallyWorld is a classic. I guess I understand CR's use of S30V - you expect an upgrade over something like 420HC, yet you want an edge that will hold up and be easily re-edged.
Stainz
Stainz