I am thinking of swapping my Omnium crank with Sugino 75 crank. I had a look on the suginos and hatta bb, I am struggling to understand the difference between Sugino 75 Super Lap BB and Hatta R9400 BB except both are equipped with mirror ball race. Is there anymore differences that cause the differences in price (Sugino Super Lap for $119 and Hatta for $95)? Anyone been using these BB now or before? Any (good and bad) feedback on those? Cheers! Thanks!