Another thing unclear to me is whether an upgraded person (<=E75) who is a nominee of a SE will have to pay the co-pay.
The AP website (
http://www.aircanada.com/en/aeroplan...e/add-ons.html) is somewhat contradictory - "Add-ons will not apply to upgrade requests made by Altitude Super Elite 100K" which sounds good, but then "eUpgrade Add-ons will apply to Altitude Elite 75K, Elite 50K, Elite 35K and Prestige 25K members travelling with Flex fares that are eligible for an upgrade "
it would be nice to know before I book Flex fares for family.