My buddy who runs our center talked to a very reliable source, and they said:
"the balls come out shiney, for shelf and appearance appeal, most people will need to adjust the surface for their needs". The Ebonite NVS was one of his points on this too.
So, for marketing, a bright shiney ball appeals to more people, than one of a duller surface. All about sales and appeal.
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Nothing Hit's Like A Hammer