Not sure this is the right thread but I'm wondering why LHR-YYZ has been using the 773 this month? Normally it's a 772 and I don't understand why BA would be using the 773 on such a short route. My flight last week only had 166 passengers so it can't be a capacity issue. Not complaining mind you. This route is normally rammed and it was nice to sit in an empty F cabin for a change.^