I agree with Chaz as far as the Pearl Uranium, and that you need to supply more profile info, as well as shot conditions. The balls I would recommend ( off the top of my head, without further info) for a 4 ball arsenal is:
Polished Super Carbide Bomb - Oil
Pearl Uranium - Medium
H20 or Bullet - Light
XXXL - spares/dry
For a 1st ball though, I would select the Pearl U or the Hybrid DB.
Dave
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Regardless of what the pins are made of, you can still SAW 'Em Up! Mess with F.O.S. and get CUT like all the rest!!
F.O.S. Members, Our Assignment Should We Choose To Accept It, Polish and Sharpen Up Our Saws; Pins Have Been Spotted, and We Are To Saw 'Em Up!!