Straight razor heljestrand MK 4 - refreshed on jnat with tenjou and meirjo asano nagura. After the razor was touched up, I came straight to this stone with oil. I like the surface prepped with my Atoma 400 as it is easy to refresh the surface when needed. I might lap the other side with sandpaper up to 600/1k at another time.

So far this stone has given great edges. I would prefer it over most jnats (with the exception of the very nice/fine ones). decent speed in my opinion and I usually finish in about 5- 7 minutes. Wanted to enjoy the stone today though and make a video.

Would recommend surgical black ark to anyone wanting a sharper edge or looking to get into naturals. I prefer jnat edge, but can be very hard to find correct jnat. I recommend 3 inch wide stone to avoid any mistakes during the finishing process.