They don't force you to use anything, you are currently use a third party device that lacks a Digi feature. If you want that feature you know how to get it. It's not a driver it's actually just a profile to communicate with the HUI. It just tellsit that the HUI is there and it as welll as any device using HUI emulation just uses a standard set of commands. It's just telling it what button, knob or switch controls what HUI feature. They are not writing a driver that's actually telling it what to do only how to do it. Other than the SSL for ovious reasons, the HUI Protocol is unchanged when implemented. If it's to be added Mackie would be the one to do it since vendors are already paying them to use the HUI Protocol. Won't happen since Mackie's track record is pretty tarnished from past dealings (Digi, Logic, UAD as well as Greg Mackie himself have been screwed by them). Can't see why going from the MCU to the Command would cost so much. Commands are $950-999 new and you can get a ok amount for MCU's, even more for the Extenders.