I got my Reloaded, basically drilled Stacked, because well its got a 5inch pin, and about 3.60top weight and with the Pin/CG/mass bias, that was about the only setup that would be worth drilling on this ball.
And its a 3 3/8 x 3 3/8 drilling too. And the ball is very controlling, can use it on basically any type of shot, Heavy oil to Med. to Sport shot.
I did sand it with some 800grit, but, thats about it.
And this ball works well too, no complaints from me yet on this ball lol.
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" Lift Your Skirt Grab Your Balls and Learn How to Bowl "