I have a theory about the Outlooks, but I could just be wishful thinking.
Is it possible that for the past month or so, bombardier has been stocking up on completed cars? (say two new ones and a ready 4402).
If they had say 3 or 4 cars completed and ready to ship, they could ship them every 4 days as promised starting in March for a little while, and pray they can speed up production to always have like 1 or 2 ready to ship whenever CP is ready. Right now, if they run into even the smallest issue when building a new car, their image gets shattered when they have to wait longer than expected to finish it and have it picked up by CP.
These past couple months could have been a "standby" period to build up a decent inventory of cars.