Back on topic, another reason we ordered the -1000 is for crew efficiency. For example as demand increases to Australia we can sub an A330 with the A350 while having the same cabin product, we can change from a -900 to -1000 for winter and summer operations in places like AKL, JNB, FCO, AMS, CDG. Our crew based in AKL are on the Airbus. They are not that efficient in summer when the 744 is used. With the A350, we can use the same crew to operate both the -900/-1000 and still provide reserve coverage for A330 flights in Australia. In short terms, if you want to up capacity, you don't have to swap out a flight with a completely different aircraft. You can just use a slightly larger variant. Just like the 772 and 773.