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Glen,
I saw the honing technique, I have seen it in one of JimR's vids with his barber as well, probably pretty popular in Japan.
One thing I have noticed on a lot of western razors owned by...

Ok found the right guy, it was not Hirakawa , it was this guy

barberyanagi - YouTube

he has several kamisori shaving vids, he has very nice technique IMO

here the first one of the series

...

This guy Hirakawa, has another channel, with honing and shaving vids. He seem to have removed the Kamisori shaving videos, he uses both sides of the razor.


Hirakawa Itirou - YouTube