I realized today that the only thing keeping me from playing Shadow Labrys is the fact that you can't assign one input to multiple buttons. As a pad player, this means I can't have D be the default button on the controller as well as a shoulder button. Since the A+B+C macro defaults to A+C when you're not in active or recovery frames, you essentially have an open button on pad.
Since I play other characters as well (mostly Akihiko), changing the button layout really screws up muscle memory. Is there any real, logical reason you can't assign multiple buttons to do the same thing?