I need to get from Florida to Seattle in December - one way. Realizing I can't do this on AC without two tickets, I'm considering Florida to YVR one day, and a separate ticket (or train or car) the next. Also, since my life with AC is now limited thanks to US's departure from *A, I'd like to fly AC "one last time". I see there are two transcons that include the herringbone configuration up front - a 333 and a 77L from YYZ-YVR. What's the service like on these flights in business? Much different than a transcon on US?