This is a dicey proposition when flying: Carry-on is not an option so I have to bring my B-grade knives that I won't miss if the airline loses them.
What keeps you from having a couple sets of A grade knives? Is it cost, or some other thing?
I'm asking because I have a few tools I LOVE. One is a set of dial calipers and I've had them since the 80's. I can get new ones, and have, but that tool I know well. My measurements are most repetable with it.
My B-grade knives are Shuns, which are still much better than 90% of the knives in a typical American kitchen but a bit more tolerant of abuse and available everywhere.
I make my own knives.