I'm back. Found the 21 I used on Sunday in the washer, so I oiled it real quick.
I have large regular from 2021 I believe. Right when CRK was switching to s30v I sent in my Sebby in for a SPA. For some reason they changed out my BG42 blade for the new s30v.
It held an 'ok' edge, but nowhere near the BG 42. I found out with a call about the switch.
I sent the knife in and was told because they modified the original slabs to fit the s30v , they had to replace the slabs.
So yes, it doesn't hurt to double check.