Well, I checked all of the cameras that Youxon Ye repaired, all are working and none show any signs of oil seeping where it should not. They are all operating correctly. Several were jammed when sent to him. Youxin is not the only repair facility that I've used, I've used Essex, KEH, Strauss, and Nikon. I will not send another Leica to Essex, two jammed within a year of being repaired there. I was disappointed in Strauss, returned a Nikon P&S camera that was under warranty as "not having a problem" when the autofocus was way off and test photos were included. Nikon fixed it under warranty.
And I doubt anyone else will replace a beamsplitter and CLA a Leica for $100.