OC.....just had to laugh when I saw your response with today's tracks restricting LAX traffic to track 3 contradicting what I had just said! Yesterday both tracks 2 and 3 were available for LAX. I would say that the majority of the time you can use either, particularly when the tracks are separated only by one degree. As you say, look out for the remarks -they will bite you if you don't.
NBNW