Long hiatus from the knife game, but I'm back in with a K390 PM2 from BBS (and now a Para3 on the way). It's a fantastic knife, and I couldn't be happier.
I've carried knives in VG-10, ZDP-189, and S30V (ok and cheap stuff), never a tool steel. I know that K390 is a powdered tool steel, and that it's more likely to corrode than anything I've carried before. I also know that some people go out of their way to "force" a patina on their M4 knives. I should mention that I'm a user - I don't own a safe, and hold no safe queens.
My question is: How many of you are actually oiling your K390 blades, or doing something else to inhibit corrosion? I've been carrying & using mine every day for the better part of a month now and there's no sign of any corrosion yet.
C90GRE Stretch 2 ZDP-189 British Racing Green
C28GRE2 Dragonfly 2 ZDP-189 British Racing Green
C12BK2W Matriarch 2 VG-10 Emerson Open
C81G2 Para Military 2 S30V
C81GPRGR2 Para Military 2 K390 Ranger Green
C223GPRGR Para 3 K390 Ranger Green
C90FPIV2 Stretch 2 Straight Spine, VG-10 Rit Dye'd Dark Apple Green
C223GP Para 3 S30V Green Canvas Micarta