YOW
An additional data point..............
At YOW, all transborder services operate out of a separate part of the terminal (due to US preclearance). RCC members and SA G* members are allowed to use the AC MLL in the domestic part of the terminal. Its a bit of a walk, and you need to allow 20 minutes to get to the transborder departure area, but with delays (like yesterday!) it can be a lifesaver!