Quote Originally Posted by onimaru55 View Post
I think his strokes are not equally divided on the stone i.e. he does a full length stroke for omote side then a shorter X stroke on return, sliding off the stone sooner, effectively doing less honing on the ura. It's subtle but it's there & more obvious at end stage. In the early stages he may be setting the bevel & honing more equally.

Anyone know what grit diamond paste he's using ?
1 micron, look at 4:08 (other folks comments).