My 2 cents. Couple of random thoughts
Ask any MD-11 F/O who has done the DH to HKG with ground transportation to SZX. I beleive the union may have even disputed it at one time. That is only about one hour long. Totally stinks. Now imagine tripling it in going to work. Plus, you realize you have to pass through immigration everytime you go to and from work. Fun, fun, fun. Everytime you fly what type of state-of-mind do you think you will be in?
They are going to fill the FDAs with some "suckers" wanting quick upgrades whether or not the LOA passes. It is just how much FedEx wants the FDAs to be successful. The reason Subic works now is the relative low turnover. So a lot of the experience and know how stays in Subic (ie they get the job done in less than ideal circumstances). That is not going to be the case with HKG and CDG.
Finally, for those with children. I know the allowances stink, but you will never get enough for a "2000 sq ft home" and education. It is city living. Just like if you lived in NYC. You have to make due.
By the way, for what it is worth. I am voting no. We should at least get COLA commensurate with the Federal Government.