Hi all. When I first got into free hand sharpening this and a king 1k/6k were my first stones. Then a year ago I bought the naniwa green brick. Still can't sharpen worth a damn most times the point to my thread is does anyone have experience with the 220? I personally find it to be very slow and not very nice to use. What I want to know is if it's my technique or if just not a very good stone as its the only coarse one I've used so I have nothing to compare it too. Last night trying to sharpen a soft carbon chef knife that was very dull but after 30 minutes I gave up for the night as it was going so slow. I was getting a nice even grind on both sides of the knife but getting them to meet in the middle was taking forever. And to clarify this is a very easy to grind steel. I've sharpened it before when the edge has gotten to this state(it's my dad's knife) and two passes each side on a fresh 120 grit zircon belt has raised a burr. But 30 minutes on a 220 grit stone hasn't. Thanks