Brian
That's fair enough. The KN is the standard needle for B20b but that would have had a C cam. The KD is gradually richer from tick over compared to the KN. If you have the new measurements and are willing to share them I'll look them up to see if they match or closely compare to a listed needle.
You can send the numbers via pm if you wish. As I said it will give you useful info when it comes to replacement. It might give others ideas too. Paul has expressed interest I see. I hope you'll post.
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