I still have mine though don't use it anymore. One of the last 16lbers... Believe the factory surface was around 800 grit matte. I pretty much kept it in box condition and it was fairly versatile. Very even, predictable roll and excellent carry. Had mine drilled pin under ring, cg kicked out with small wt hole. Ball flared a good 4-6" and was more an oil ball for me at the time. Great ball!
Spike