I just put on a Galfner Wave rear rotor with new EBC brake pads. Now when I slow down it sqeals really bad. Any ideas on how to fix? I am going to take it apart and clean the pins really well. Then try some disc brake noise lube for the back of the pads. I don't want it the way it is because it doesn't sound good and I'm just getting my K5 to be just right.