Their basic procedure for most of the their "sheen" finish balls is to sand them to 320 grit with wet/dry sandpaper, to 400 grit wet/dry, to 800 grit with nylon pad, put a very high gloss shine on it with their own Factory Finish polish and then re-sand it with a 800 grit pad. When they're finished on the original stock balls, you can see some of the original shine, through the sanding marks of the 800 grit pad. So the final finish is not quite a true matte or dull finish.
I have found that Trizact pads, original used to modify the VERY hard particle in Brunswick Proactive particle balls (1997/8), do a good job on the diamond particles of the YB, the New Standard, the NS2 and the Big Kahuna.
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"None are so blind as those who will not see."