Mackie is making these devices since long time. They have published the protocol for Mackie Logic Control, but even the latest MCU Pro unit is still the same from computer perspective. They are using new faders, they have a bit changed design and they have changed some labels on buttons. But there is no difference for Sonar (or other DAW).
I recommend you original MackieControl plug-in from CakeWalk if you do not need ACT (control Synths). "Mack... Control" preset in AZ Controller is imitating original plug-in till some level, but not completely. But the major problem with this preset is that no one is using it for Mackie devices (I do not have any) and so it probably has some bugs.
With layout I posted, you can follow Mackie Control (CakeWalk plug-in) documentation (help file), everything should work as described. The plug-in (and so my preset) can do much more then what is written on buttons, since it has different "modes" and 4 modification keys in addition.
