It is odd. My E320 had 50K miles on it with the original pads. When I changed them I wanted to elimiate the brake dust on my wheels so I researched and went with the EBC pads. At first they seemed fine, with the exception of a little more firm pedal. Then the squealing began. Since I put them on the old rotors, I pulled them off and block sanded them to refresh the surface to give them another chance to bed to the old rotors and used the CRC orange glue type anti-squeal paste. Again, problem cured temporarily then back, not as bad as before, but back non the less. Now I also have pulsing through the wheel on easy braking, which is either warped rotors or deposits on the rotors.
If they are working for you, stick with them as they definately have less dust. Just food for thought.