if you file a complaint you have the option to cancel your score (either way it MAY be delayed) and if you decide to cancel you will most likely be given a waiver to retake the LSAT for free (can't remember if you still get a count towards your 3)
Retaking offers only opportunity. You have nothing to lose. Even if you get dinged in the meantime you can sometimes appeal the decision once you have a higher score, though if you were borderline they might have held you anyways.
I got an app waiver from every top 20 school outside of H,Y,and S.... I'm applying exclusively to the top 20 and hopefully one accepts me with a scholarship.