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@TM
I had same problem with my Bob jackson. Nuovo Record cranks and centaur 111 BB. Filed the shoulders down, but then found that the bolts caught anyway. So spaced the cup accross about 1.5 - 2 mm (width of a lockring) as I wasn't about to spend another £40 on a BB if I could avoid it. Works fine now is perfectly spaced on both sides.