ive got my Hiro in hand now. 60/40 edge. looks so close though.
This is the way leather stroppers find an angle, but it is a little approximate, the real sharpening angle is a tad lower. And it only works with undamaged edges.
Originally Posted by Geo87
I've cut a few wine corks with angles between 4 and 30 degree I tended to use for reference. In combination with the marker trick it gives a rather accurate angle. But, as beforementioned, it isn't that relevant for sharpening. Look at the scratch pattern and increase the angle til you raise a burr, and you don't need to know whether it was 9 or 11 degree you ended with.