Iron Skillet, you mentioned reduced credit on flights which will have more crew but you fail to mention that more crewmembers will get more credit in their rosters. In other words, CX will need more pilots to crew the roster and the pilots who operate these sectors rather than PX will now get more credit (albeit at the slight reduction in credit for the other guys) than they get now. I think that's a win for the pilot group, as a whole.
Therefore, do not sign anything.