This question relates to one of Glen's videos but I'd appreciate input from any of you experienced Kamisori users. Glen shows a downward and upward action and I assume the amount of pressure is much the same as you would use on a straight i.e. slightly more at bevel seeting and virtually nil after that. My first question is does the amount of pressure differ on the downward as opposed to upward strokes?

Secondly, the upward stroke is equivalent to back-honing which I thought was only used for getting rid of a wire edge - so why is it seen as acceptable or necessary on a Kamisori?