The NS6 works pretty well, and it has a lot of buttons & knobs that can be used to map other functions of ME and SSL. So far I only mapped the cross fader, transitions & effects. I map other buttons and knobs on the NS6 to SSL and everything works simultaneously so far. The crossfader mapping is pretty solid. Only problems I have is when pressing the mapped cue buttons in rapid succession, sometimes SSL doesn't respond to all the presses. Also, since the jog wheels and some of the knobs and faders give absolute position data, they can't be mapped to anything in SSL, like it doesn't understand the MIDI data or something.