If I think the ball has real possibilities, I'll do 2 drillings and 4 surfaces on each: 2 with a matte or dull finish and 2 with polish.
2 with matte/dull will be either 1000, 1500 or 2000 and 2000, 3000 or 4000.
2 with (non-abrasive polish) will be either 1000 or 1500 under the polish and either 2000 or 4000 under the polish.
The testing of each drilling/surface combo should be thorough, and compared with at least 2 other similar balls to understand the differences between each.
This can be difficult unless your leagues or practice sessions are oiled consistently. I find this to be more and more difficult as the economy nose-dives and managers are less and less concerned with the maintenance of their establishments.
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