The one Japanese razor I have was seriously improperly honed. It was a nice one. Exactly what I wanted- thinking of having made... heavy. It's actually the heaviest razor I own. I returned a used tosuke for the same reason that was not near the weight of this one. I thought it'd give me the chance to decide if my 70mm spec was out of line. However its appearance has become so disturbing to me that I will probably ask Mizuochi-san to repair it for me.

All that to say I haven't honed a kamasori much at all. Even though they never seem to be nearly as flexible as a full hollow isn't there still going to be some distortion of the edge if you press too hard. As well the amount of pressure seems like it would depend on what kind of hone you are using - how well it cuts very hard steel. Not to mention foundation prep.

I'm not arguing just seeking further learning. Thanks BigSpender for sharing your experience.