Originally Posted by
Euclid440
My question, is Iwasaki describing a breadknife/jointing technique or a horizontal stroke, up and down, parallel to the edge, with the spine and edge flat on the stone? At the time, I though he was describing, a jointing technique to straighten the edge. I am still not sure which technique he was describing.
Opinions were divided, as the description could either be a jointing or side honing technique. I began researching the possibility of Iwasaki describing Side Stroke Honing or what the Japanese call, Vibration Honing, a horizontal stroke, as shown in Takeshi-San video, linked here and in the thread.