When I was looking around for springs for my car everyone (sales people other 3 series owners) told me go with the Eibach prokit, best combination of performance and handling. Now I've been hearing from all sorts of places that H&R are better (before I bought my springs everyone told me that the H&R sport have a harsh ride) and that Eibachs are horrible, too soft, will sag, etc. Is any of this true? Or are people just talking nonesense.