This is the biggest challenge to CopperLanize existing MIDI gear
There's only so much control you can achieve over legacy midi gear I guess, but the issue you discuss sounds like nrpn/rpn issues and not that of sysex control?
I would have thought with nrpn/rpn, the CL target would be the controller i.e 'control the controller' ...it's been done already (understatement)
Real men wear Brut and want sysex control over their midi beasts...they dont want doof doof doof with the bullshit CC messages. Then again, real men (and women) probably use modular gear with those electrickery signals
Talk sysex to me....is there a problem inherent with sysex that CopperLan cannot overcome, as you allude may be the case with nrpn/rpn ? Should I sell my rack-mount hardware and buy 2 turntables and a microphone (Copperized of course)
Do tell me if you think my limited understanding of the difference between nrpn/rpn and sysex is misdirected!
For example I know of no device that has ever offered to stack sysex commands under the one physical/virtual control i.e 10 synths have the message for filter cutoff implemented differently and I wanted to move that parameter on all 10 synths at the same time...never been possible...and maybe never will be, unless......
Cheers