ezydriver,
Apologies for any misunderstanding, but I was comparing FO salaries. However, having said that, yours seems to be a common career route, and without commenting on your personal circumstances (as I have no idea what they are), presumably most people who do move from TP CP to TRSS SFO and take a pay cut are doing it because it suits them, personally.
Don't get me wrong, I'm not a fan of TRSS. If you could give me a switch to turn it off, I would. If BALPA, of which I am a member, organised a unified worldwide boycott of self-sponsoring type ratings and coordinated with all the other unions, then I'd sign up to it, but what I won't do, and what some seem to be suggesting, is risk the progress of my own career apparently all by myself.