Apparently in about year 2000 (so I believe) ASL were given a one off opportunity to join CPA. The only reason that everyone did not take it, I believe, was that joining CPA meant accepting RA 55 whereas ASL had (and apparently had always had) RA 60. There was obviously no inclination then for CPA to go for RA 60 then which could have helped to unify the work force. An associate of mine tells me that adopting RA 65 for the whole of CPA will disadvantage a lot of junior crew who joined in good faith expecting career progression based on the contract in force. From my knowledge of the company can pilots reaching age 55 not rejoin on the new conditions of service which apparently give the RA 65 - obviously on the bottom of your seniority? list but still in employment..