I am wondering if CX isn't running their 777HD version to YYZ/YVR, and the capacity reduction by AC, whether the yields aren't very good on this route. I would have thought with the large canto population in YVR/YYZ, that this route would be very profitable. I guess there might be a lack of business travel to fill in the J class as well.
Once again, the biggest question is, where can AC use the 777HD for higher yields than YVR<->HKG.