There should be no wear at all once it's running, read: https://en.wikipedia.org/wiki/Air_bearing https://en.wikipedia.org/wiki/Air_bearing So barring any manu

There should be no wear at all once it's running, read: https://en.wikipedia.org/wiki/Air_bearing https://en.wikipedia.org/wiki/Air_bearing So barring any manufacturing defects that I'm soure would be abundantly clear early on, it's down to logic or electrical failures.