Thanks for the info, i will be booking it in Sep/Oct to start in Feb/Mar and it should all be finished by Oct/Nov the same year so all the points will be in the correct qualifying period.
It's good to know that availability isn't too hard on the YVR-JFK route and that AA dom flights book into A. That will help my miles considerably. If it gives me 100% and then 50% COS bonus what will my EXP bonus affect? I guess it will give me 100% of the original miles flown and not 100% on the original miles and the COS miles?
Chris