Originally Posted by
bill3152
Hello, I have 2 shubos and find a softer kiita(not too soft) works very well with mine. I also use a synthetic ruby stone(9 on the mohs scale) to raise base stone slurry only that is finer than a dia plate can give you works very well. You can use a hard ozuku asagi also as it will do the same thing, just round a corner and use that to raise base stone slurry. Nice and easy so as not to put deep scratches in the stone. The ruby stone I have is old and I didnt buy it, it was given to me. They are for sale from China for $20 or so. Mine works well, whether the quality is the same I couldnt tell you. It is sintered which means it has no binder.