What I am trying to figure out is a way to use legato with velocity controlling the filter env amount but only on the initial triggering of the note with no velocity interaction during any part of the legato no matter how you play it until you let off and trigger a whole new note.
I have tried using envelopes, LFOs as envelopes, MSEGs, and even complex mod matrix that sets the velocity sensitivity to an envelope with a short hold time... nothing works.