As title says, want to do SIN-EWR-SIN and SYD-LHR-SYD with the A350-900 and -1000, ideally. As I understand, both have an extra fuel tank with the -900 getting a ULR designation while the -1000 doesn't get any special designation, but gets extra range.
Super excited, very glad both winglet types are also being done on the -900!