Posted By: DaveI've had my edgepro for 5~6 years now and I have been using the chosera stones nearly the whole time and I like them but I have a very hard zdp189 gyutos and it takes about an hr per stone from 800 to 10K to get a nice mirror finish and they don't last, they are fine for softer steel, So I was a little skeptical to try these but the reviews swayed me so I ordered 1K, 4K, 8K to start with and I am so happy with the results, 20 min per stone and it's a perfect mirror finish and shaving sharp. The 1K seemed to load up quickly but the metal was flying off, so every 5 min I would run it over the diamond plate and good as new. 4K was fine after I flattened it on the plate at first, the 8K started to show a wear pattern after 10~20 passes but it was pulling a good amount of material off as well. All in all very happy with these stones and for how thick they are they should last years. I think you do need a diamond plate with them though, but I will be ordering the 500 and 2K next time I put in a order though.
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