Naniwa new omurato 150 and Shapton 320 comparison 

I have both and use both and like them both. The very coarse Debados are absolute beasts, but you pay for it because they are extremely expensive for their grit and dish out and wear down very fast. And there is basically no way around that. I use the Debado 1k and 4k as the main workhorses in my progression, and l love both of them. The 180 and 200 Debados are amazing in action but holy smokes do they disappear quickly. And if you are using them for thinning, you'll be taking flattening breaks constantly. The New Omura 150 is twice as much stone for half as much money, and while it is more complex to learn and use, once you figure out how to work with it, it can be very durable despite being on the soft side. In this video, it looks like he keeps the surface too wet and constantly removes the slurry. And that's why it dishes so fast. This stone works much better if you soak it for a couple minutes, raise a slurry with a diamond plate, and then leave it on there. Only add a spritz of water occasionally if the knife sticks. This lets the mud do the work and preserves the life of the stone. Also, l use these type stones almost exclusively for thinning wide bevels, and not sharpening edges. That is where they really shine. If you go digging edges into any of these, they will need constant flattening.

@@davidtatro7457really appreciate your insight thank you!

The pro would be a tad harder if im not mistaken. i believe the lowest grit naniwa produces in the pro/chosera/arata range is 400#. And i havent had enough experience on the 320 new cerax. i have the 280# though, the small version :)

No i wouldnt recommend it for that purpose simply because it is so soft. It will wear down the surface and make it difficult to remove scratches in the following grits. personally i prefer a belt grinder :P BUT i would look towards harder stones. I believe suehiro debado MD - 20, or LD - 21 would be the way to go :)

I love this 150 for thinning, with this caveat- you have to keep the slurry on the stone and not let ir get too wet. You basically want your stone coated in a paste of slurry, and just barely spritz it bow and then when ir gets too snicky .

It is a wusthof pro in high carbon stainless steel hardened to about 56 rockwell. So it's a soft steel, but it's easy to maintain and makes a great "beater" 😁

Myself i tend to gravitate towards the softer stones as well, and i have to admit that i have a soft spot for Suehiro. They make some awsome soaking stones, ouka, rika and shiramine just to name a few. If you ever have a chance, check out their LD - range. splash and go, but amazing large stones. The ld-21 180# is my favourite coarse stone atm.

@@lofotenknifeworks2278 love the Rika. Amazing 5k stone.Best in its class on the planet. Just like the chosera 3k, best in its class on the planet. I have the Suehiro MD 20 and 100. Both nice splash and go stones.

Firstly this was a request from a viewer :) But its not always just the grit that decides. If you compare the same grit between naniwa pro, naniwa super and shapton pro. The shapton will be fastest and the superstone would be slowest but polish way better. And the pro somewhere in between. And that all comes down to the bonding/polishing agent, as well as the molecular structure (Baked vs vitrified etc). So in some cases it can be very interresting. :)