The last few times I've flew into or out of klax, even with the wind out of the west, atc uses the 7s or 6s. Today the wind was 250/12. So I made my flight using 25R for t/o. But atc selected 7R even though in the atis it had the wind 250/12. I don't know why this is happening. It's been fine for years. I've looked at the afcad and everything is fine. I'm using fsx:se active sky for weather. I don't know why atc doesn't use the 24s 25s.