Hey guys, I made some videos on K2 Traktor mapping (http://www.youtube.com/djsetupde), including a video on LED output from Traktor ot the K2 (link to the TSI inside the video at http://www.youtube.com/watch?v=RBiQlO7svVk)!.. Maybe it's helpful. If you need some mappings or tips please send me a comment on youtube, I'm usually quick to reply ;)