Thanks, your advice is quite reasonable.
OTOH, I'm new to all this, and going through all of the challenges behind the "I wonder if's" will hopefully translate into solid fundamentals through learning experiences. So I'm leaning towards a barber's hone, or a chinese 12K, and with the experience acquired, decide on a next step.
To put it in other terms, if I wanted to go hard into road cycling, I don't think a bike like
this 10,000$ Cannondale would be my 1st purchase. Ok - admittedly, I exaggerate. But you get my drift :)
Anyway, no honing plans for now - when the time comes, I'm sure I'll consider the naniwa.