OzE-R33

Hi Guys, Started reading this thread this morning, got to page 25 (not much happening at work) then skipped to the end... 4 years and 55 odd pages later I figure hey for $30 who can say no. I have 1 question though. What is the long term reliability like? Can anybody who has had one of these fitted for a few years comment on spring tension reduction, carboning up, ball bearing rust etc etc. I know it doesn't really matter as for $30 you could buy one every year if you wanted.... just curious.