I've been reading bits and pieces about the king wear and checking for it. I came across spanner jugglers interesting post on trying to detect wear and failure of the MOT tester to pick it up.
The pin and indeed the bush is a fairly hefty bit of kit and it would seem that a catastrophic failure need not be considered as being possible before an unbearable and identifiable amount of wear appeared at the steering wheel, at this point they'd need changing. It would therefore seem that the best course of action is to keep running the car and greasing the pins until you identify wear by a deterioration in tne steering functionality.
I would appreciate any input on this if i'm missing something important that may result in a catastrophic failure.
