I have been a long time (2001?) user of traktor! I have bought a Vestax VCI 400, and updated it to serato firmware (v 2.0). Does it have any reflection on traktor? I have always a cracking sound when playing traktor! I am not sure if i had this with the previous firmware. And if i go back to previous version firmware will i be able to play serato cause it has its good sides (not that i am ever gonna quit traktor)...