Not so long ago I crashed the bird and destroyed 1 motor and esc on my M300 quadcopter.
As I had to replace them very soon (because of holiday) I simply changed the Blheli flashed ones for the cheapo HK F-20A.
Flashed them of course with Simonk 2013-05-15FW.
No problem with the motors or escs so far.
And the footage, which was shot by the Balaton lake, Hungary: