I know it's Japanese Natural Stones, but you are in the right part of the world, and I trust your opinion on these things.
Do you ever consider selling some Yellow Coticules? Do you think they are good for kitchen knives?
I'm in love with the idea of a stone who's mud cuts super fast and can polish when kept/rinsed clean. Seems like the perfect quality of a touch-up stone, but I know the abrasives are round garnets and blah blah blah. What do you think?