finally, somebody else who can see the value in doing preventive measures...
although... 30secs. to 1min. was all i needed to soak the hinge in oil. also, if it does get a little loose due to sanding down too much of the knurling, you could just put a dab of super glue in the area where the knurling part used to be... since the pin was fastened to the plastic via the knurling in the first place.