Ya, I skied last Saturday and landed switch probably 40-50 times and today my back was hurting when I was sitting in class. It's not unbearable or anything just kinda annoying, I'm assuming it will go away in a day or so but I guess I'll just try to land over my skis more. I just learned how to land switch so I don't really care if my back hurts a little, it was all worth it.