Hi all,
The reason I use Battery mono outputs, is so that I can apply processing 'per track' inside Sonar of each cell.
Battery has it's own effects, which is nice, but say you want to use the pro channel 'soft tube' on one cell, lets say, the snare. A mono output from Battery into it's own track in Sonar is the only way to do it with one instance of battery.
I haven't actually used Battery 3 with Sonar X2 as yet, so that is a bummer to hear. What with that and many random crashes I am getting, it's a bit sad.