firstly, i run it on normal deore rotor that is not centerlock, secondly i haven't got the option to buy avid since i have 50% discount in one store that has only shimano discs and i wanted to pay less. 
 
i just asked does the disc brakes good. 
 
AND how much time does it take that the new disc with new pads  starts to brake correctly, i think that the pads need some adaptation, while they are completely new they dont brake so good, am i true??