I have actually installed the software on a duality the other day and tested the A-FADA, it's an interesting solution but not too elegant.
you need to create extra faders and not assign any output on it, alternatively a set of aux sends on a channel basis.
It seems the only way to control actual Audio Faders rather than outputs from protools.
it seems weird that Avid cannot implement some sort of non HUI protocol that also SSL could use in order to run it in a better way.
(the console is lovely tho!)
Mattia.