These threads are so frustrating.

My Tsushima & my Suitas are most likely completely different to someone elses.

Aoto can run the full gammut to replace 1k nearly up to 8k synthetics.

Nakayama stones can be brilliant or they can be rubbish.

You can't tell anything from stone names & it's hard to tell much from pictures either.

You pays your money & you takes your chances.... Or you find a buyer who will work with you to help achieve what you require from a stone.