Hi TChapman, welcome on this forum! :) First off, have you already asked this at ProTools' forum and/or tech support? (Because, you know, this is *not* a ProTools forum.) Second: if you want to reverse engineer how PT sends 'feedback' to remote controllers, it seems to me that you really *should* start using RX - select a track, move a 'fader' in PT, watch what data it sends out, try to spot a pattern. Hope this helps!