I played around with the Velocity Compander as a real-time midi processor.  It was soooooooo nice.  Much easier and far more useful than trying to select from a small set of velocity curves.  If you tweak a version to do real-time processing of channel aftertouch, please let me know. A couple of controllers I have that use channel aftertouch that have no flexibility at all--other than painfully trying to develop a personal performance technique to match  the hardware. Thank you for the tool