Originally Posted by TurbineBlade

They suck -- period. They're never worth messing with, and any potential bike that has them should immediately have them removed as a first priority. Other than learning to drive the pins out and remove the cups before trashing the entire unit, I don't even see the value in a mechanic learning to "work on them" -- (which basically means bashing on things with a hammer, maybe using a punch, and using a metal file to do a cheesy job of filing straight.