Before the era of Urethane and Resin. Everyone had a plastic ball. All the great names of near past, like Anthony, Roth, Holeman, Wagner and such, all had plastic balls and hooked them to some extent on lanes. Of course they didn't hook like CRUX or Nirvana or Ruckus, but they hooked none the less. I know the oil was little less and the conditioners had different characteristic, but that's what was required back then.
After this introduction, here is the nitty gritty after I read a little bit about Ball Motion Study and follow up comments, reviews and forum topics.
Suppose I take 3 balls, all same, Symmetrical, medium hook potential, say 6 on the scale of 1 to 10, drill it Rico and use 500 grit on one, 1000 grit on 2nd, and 1500 grit pad on third. Considering all the balls are same, how this strategy sounds instead of going after different balls and frying brain on how to lay them out.
I play on medium to dry 40 feet mostly.