Hi guys

Just qualified for 35k elite altitude status. I know by the end of this year I will hit super elite 100k status.

Just a question as to when the best time to use my e upgrades is? Does air canada ever upgrade elites for free?

From all you guys who are experienced with regards to how to get upgrades as elites without using e upgrades let me know. Do you try to book full flights? Type of ticket?

Thanks in advance.