Hello,
About a month ago we had a discussion on clearance angle and I said that a study was coming. So here it is.
The following graph would be a nice resumé
All test combined.jpg
This graph is saying that a 17° clearance angle (CA) is the best and that the number of shavings is reduced linearly if the CA is reduced.
The full study can be found http://oldchips.blogspot.ca/2016/06/...nce-angle.html
I am quite sure that some people will want to argue the results because they are not sharpening at the right angle for years, just like me. Now that I know what's the proper angle, I'm going to have to adapt my sharpening method. I don't have to but it's not difficult to adjust my free hand technique.