Porterboy,
You won’t be making descent money with COS 18. You really need to look at the cost of everything in Hong Kong and compare the package as a whole. Add that to the fact your now stuck in a place with a much lower standard of living and it can result in a pretty miserable existence.
Hard to appreciate until you live here.
Seen plenty of guys even on COS 08 go through the process once the shiny jet syndrome wears off after the first 12 months or so.
Please take this seriously.