I am booking a flight using AP from YVR to ATH with a stopover in YYZ. Looking for business class, so there is Business Lowest that gives you economy class from YVR to YYZ but business class from YYZ to ATH for 75K AP, or if I want business class the whole way it is 105K AP (business flexible). If I book the business lowest option, if there are seats in J would I be on the upgrade list for the YVR to YYZ flight or would I be seated in Y for the YVR to YYZ portion no matter what?