Has anyone used some or all of these? How did they compare sharpening your high carbide steels? I have used the DMTs for about 10 years, stopping at the EF plate. I've also got some other Japanese waterstones, but im getting into more high carbide steels, and I want the best edge possible. I'm wondering which 3k diamond waterstone would be best between Naniwa and JKI. Are the 3k diamond waterstones noticeably better than a DMT EEF at sharpening high carbide steels?