The YUL AF check-in agent was really nice and welcomed me as EB ST E+ but as usual the airport screeners of Boarding passes, for assigning security line, has no clue about airline priority unless it's AC. So it's 50/50 if I end up in the priority line or not (unless I fly AC). Luckily it is a very well run airport for all pax and I have very seldomly any noticeably wait time for security.

The AF lounge was straight in with out any problems.