I have been cutting feathers from the thick end to the tip, I found, for me any way that the secondary feathers were easier to cut so, I've been using more of them and avoiding the primary feathers. This past weekend I tried to cut one of the primaries from the tip down toward the thick end and will never cut the other way again. from the tip to the big end I start a cut and then the quill just pulls apart leaving a clean pretty even quill. Ed