Uderpants, you know as well as I do, that the company will only change something when they cannot man a flight. Look at the cabin crew and how they get their patterns change.
By now you should also know that what Cx consider legal is sometimes not sensible you make mention to one of these points in your last thread.
If you are rostered a SIN return through the night, followed by a NRT midnight departure the following night into a 12 hour 3sector day which gets you back at midnight sensible, that fine with me. I personally think and know that that second night to Tokyo will cross the line of what I'm prepared to accept, so if I' m not rested enough, I will not do it.
Remember it is your life and license on the line. In an accident crew control does not suffer.