Manufacturing marks or wear?

[mk1-mark]

I think people are being distracted by the apparent "new" look of these marks.  Just because they aren't "old looking" doesn't mean they aren't old.  The part where the marks ar is well greased & has not been hardened, meaning the marks could potentially stay bright for years.  The radial nature & uniformity of these marks tell me that they were not made by something being worn or incorrectly fitted.  Each mark is "radial" in nature, moving out from the centre or toward the centre, they are not lateral chatter marks.

I am, as I said in my first post on this, absolutely convinced that they are machining marks from the spline cutting process, I inadvertently described them as broach marks, what I meant was that they were made by a gear cutting milling bit. Something although not identical, along these lines.