Originally Posted by
flubber
Yes, you will definitely get a fast-track coupon on CX J.
Since you will have to walk a little further to the fast track immigration area, you will pass by the normal immigration queues. If the queues look short, I will just go for it and skip the extra walk to the fast track area.
For perspective the "extra walk" is about 50 feet past the entrance to immigration, just after the mobs at visa on arrival.