ccnyc is right! I didn't think to mention that so good catch... my LBS said to be very careful to never OVER TIGHTEN the screws... they should be hand tight plus 1/4 turn! I check mine every couple rides as they CAN and DO loosen up over time... even with locktight... for me it's just another ritual... like checking my tire pressure and my quick release levers pre-ride every ride...