This post has given me greater initiative to dust off my Chinese 12K and put it back in honing rotation; Admittedly I've only used it a few times and purchased it just before going whole hog on the Shaptons.
The way I've neglected the 12K, I harken back to 2.5+ decades ago when I was in Junior High School. The 12K on my honing shelf is like the new kid that you know would be a great person to befriend, but instead you brush him off and ignore him. Worse yet, I'm like a disrespectful bully; I've been using it as a flat surface to tape my chromed newspaper to for edge polishing! Man do I feel guilty now! Especially since I was never a bully in school!
Chris L