Late to the thread, but call me a fan.
I'm the stubborn one the honorable Cudarunner bought the Nani 12k for. It went exactly as he says - is usually the last stone before going to the high grit G20 or an Asagi.
Cuda seems to get more from his N12 than most I've tried edges from.
The new guy is HARD on edges - even if his stropping is good (mine was not, to put it mildly). A straight stroke - no angle to the direction of the stroke is harder on an edge, as is using too wide an angle. Edges don't last that long, used that way.
Certainly you want to gain some comfort w/ a shave before transitioning to the 'advanced' stroke, sometimes called scything or guillotine strokes. Combined w/ a shallowest angle that still shaves, the edges start lasting longer, as the honorable Sixgunner has repeatedly written.
Anyone needing some honing would do VERY well to connect w/ Cudarunner. We've traded at least a dozen edges back & forth, trying stones, techniques, etc. I can say with confidence, you'll find his edges to be very shave-worthy. At no extra charge, you'll likely find him a pleasure to talk to, work with, and a sense of honor that has grown rare. I especially hope new guys will take advantage of his help. I'm richer for having done so.