i own a black widow and a hawzilla, and i didn't touch the surface with any abralons or scotchbrites for a couple months, wiht me cleaning the ball after every time I bowl, and they both started to take a shine to them like there was a light coat of polish on them. I also started noticing more length before the turn. I have heard this before from other people with these two balls, also this happens to the No Mercy, it is the coverstock they use. And on all 3 they use a very similar coverstock.
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"Nothing Hits the way my Hammers HIT", but then again "Nothing Rules Like my ROBO RULE"