Karen Chen should go back to Requiem for a Dream for the SP - https://www.youtube.com/watch?v=zhfQE6hAsY0 . I don't think anyone else is using this music for the Olympics and it's a better selection of high-energy music for her than the wailing Roxanne she is doing right now. Roxanne is too harsh for her skating and isn't working, particularly with the spins at the end. Her new LP will be a good vehicle once she gets more mileage on it, time for a better SP as well. If she wants to keep Roxanne, then I think she needs to cut the vocals and just copy the way Yu-Na Kim did the program in 2007, because that version is really the best you can get.
Agree that Karen's SP isn't working for her! That moment when there's the roar/scream in the music and she shakes her hands above her head bugs me to no end. It is super awkward! In acting class, we would have said she is "projecting" rather than expressing her emotions. I've only watched her SP twice, but each time I noticed that her presentation gets better and better after she passes that moment. Like she needs to move past that awkward moment before she can really start performing.