I'd put them in the left lanes and not the right lanes. right lanes are for trucks. And, that would mean only one "stop" building instead of two.
But then, I'm practical.
Think of it: The 405, from Santa Clarita to at least Century Blvd. The stop at Wilshire would be beneficial for VA Hospital and Federal Building, AND same buses would run from downtown to the sea. Another set of the same buses would go from The 405 down Century Blvd to LAX. Could have a stop at Saticoy Blvd, move Flyaway from Woodley Ave to Haskell, and voila! no buses.