Personally, I found that I need to apply finer base grits to schieve the OOB looks of a ball, except for Storm ball. E. g. Brunswick: they recommend a 400 base grit bplus their high gloss finish. But even at 1.000 grit (white 3M pad) I do not get that even finish of an OOB Brunswick ball. The sanding lines are still visible. And the ball reaction is poor, too (despite using polish generously and working on the ball until the polish is really distributed well).
I recently switched to a general 1.500-2.000 grit basic sanding surface before I apply polish, and this yields a very tacky surface with a predictable lane recation on any ball I tried it yet (SR300, Reaction Rip, MoRich Sahara).
One might have to make lots of experiments, since speed, revs, etc. are individual and you simply have to find out which surface prep yields the "best" reaction for you.
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DizzyFugu - Reporting from Germany
"Put some make-up on your face - Make this world a better place!"
Kahimi Karie, 'Good morning world'