Another bump for an old thread. Any thoughts on how these notches might affect shifting performance? The cogs wont be aligned precisely as intended when there are notches. I'm on my second aluminum Easton freehub body and also needed a hammer for my last cassette change. I'm afraid of swapping out the cassette again for what I may find when the cogs (eventually, with much effort) come off. FYI, I had to ditch the first freehub body because it created an awful creak.