msmcleod
I know this has been raised in the past, but it was a while ago.... could this be fixed?
Theoretically that can be fixed... Back in time I have asked if someone is ready to cooperate for that (I do not have C4 and there is no software emulators for it).
Practically, there are many bugs in Sonar/CbB control surface part for ProChannel (in general and in particular method used by MackieControl to access plug-ins). There was no volunteers and I have other priorities at the moment.
If your target are just EQ and Platinum stock Compressors, in any ProChannel position, you can try
http://www.azslow.com/index.php/topic,341.0.html But I do not remember wether it helps C4 (was written for and tested with MCU only). If you target other modules, there is no known solution.