My humble OT tip.
I have been trying to come up with a really tight xfader curve for scratching with OT. Now there are several methods for this but I think I finally figured out the best way:
Set up a delay fx for the track you wish to cut with the xfader. Configure the delay to do echofreeze. Now make that echofreeze output silence with a very short delaytime. Set up a scene which activates the echofreeze and Bob’s your uncle.
While I find this method produces the fastest possible cut with the OT fader (MIDI CC value change of just 1 unit for opening and closing the fader!), its still more of a ”scratch switch” type of cut, not a fade, so results will wary. A real cutting xfader will still produce more musical scratches. But this trick is neat for cutting up beats and such!