Originally Posted by
Iride01
If you want to reassure yourself, just find out what exact model cassette that is and then go to the mfr's website and compare the teeth to their picture of that same cassette. It's really amazing when you first look at one closely the first time and notice how much shaping and sculpting of almost every tooth is on our modern cassettes with 10 or more cogs.
And the wear is going to be evenly distributed around the cassette. Teeth which are pointed or truncated differently will be that way because that is how they were made, they will not wear differently than adjacent teeth.