UPDATE: New recovery can flash all CM 10+ ROMs and CM 11.
This recovery has RAINBOW theme, Wana try press vol+ vol- button and then continuous press vol- and reclick back button. Enjoy KITKAT 4.4.2 and other CM 10+ ROMs on this CWM 188.8.131.52 recovery.
Update December 26, 2013:
recovery and format of sdext
Update Jan 16, 2014
Flash all CM10+ and CM11 ROMs
Backup restore problem solved (Linking Dexes and showing "zero' system space after boot)
Please 'HIT THANKS' if this really help you, Thanks meter encourage developer to work more enthusiastically