dizzyfugu,

Yes, indeed. Not to harp on it, but what you say is reflected in what I recently tried to do with one of Brunswick's own balls, the Nemesis (aka the Wizard). I tried Brunwick's polish and Rough Buff with all kinds of different base grits and got terrible results for me, on any of 4 or 5 different oil patterns and lane surfaces. Then I went back to what has worked for me on several balls: 600 grit sanding plus a dose of Track's Clean and Sheen. ANd it worked. This experiment was the basis for that previous reply.

Sorry it isn't available in Germany or Europe; it might be but is probably very expensive or hard to locate. Some of the internet shops (Buddies, Bowlers Paradise, bowling.com) would probably ship to you, but again, very expensively.
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"None are so blind as those who will not see."