I know NI doesn't like to send midi unless the NHL is disabled as well as in MIDI mode, but I am running the s4 with default mapping (internal mixing); therefore i attempted to send just the x-fader position out through traktor virtual output to ME midi in. this is where i am stuck, or is this just not possible? its not a crucial element to live performance, but would be a plus. For now I just have ME mapped to an APC20 + 40 with my s4 in the middle, and the auto-fader works beautifully ;)