Let me pile on a bit (related only by MIDI): H90 support for pitch bend; possibly channel aftertouch. Probably makes more sense to receive, rather than transmit. The keyboardists will love you for it, while they ponder a Eurorack version. And who will then move on to poly AT and MPE support requests.
Data-intensive, yes, yet the ‘Factors & H9 managed to pull off (at least) 12-bit PB. The trick with pitchbend will be returning to a center value accurately. I’ll admit that may not work out logically across all algorithms and all their parameters.
