After more than 20 years in BA I am a reasonably junior LH skipper. My first JSS roster is a disaster, far far worse than under Bidline. It may be another 10 years or so before I become senior enough to get a decent lifestyle again.
Think long and hard before committing yourself to joining BA. It has its clear advantages but also a lot of negatives...and the negatives have been steadily increasing whilst the advantages have been quite drastically eroded.
Timing is everything and anyone joining now will be behind the huge recruitment campaign of the last few years.