I have some. I have 3.00, 3.07, 3.15, 3.25, and 3.33.
Some are factory. Some are aftermarket. I think some are polished, and some are lightened. I do remember that my 3.07 has a nick in one of the ring teeth, but not in a place that sees contact.
PM me, or call or text me at 913-nine 5 four- 2 eight 54 if you want me to pull one out and look at it.
paulie