Well, I was just cleaning my knives, and I got a "Huh?" moment: I just have the "intermediate" ones: 5, 10, 15 and 16... no a small neither a big one... Houston, we have a problem!
I think there is space for a BK13 and a BK9 to cover the extremes.
What do you think?

I think there is space for a BK13 and a BK9 to cover the extremes.
What do you think?