Myself rejected two slots,got the third one. Kept the channel open and lots of talking. But! -the nice guy is not there any more. So, think twice if you really like the job. Parabellum is absolutly right. Not too much of a need for 777 Capts, and if you delay your acceptance date, will end up on the A330 list. Skip the vacation bro and hop on board! I know the wife,the kids,the mistress, all will be mad, but better them than you.
Happy flights!