Running onstage with Syndicate probably would not be the best idea. I have not tried it, but they have a very electric sound, which is not represented well onstage.
I would ask Chris Mitchell, FOH, for a SBD patch. I have gotten one at every single AS show I have attended. Chris runs some kind of Yamaha mixer, and it has every type of output imaginable.
That's what I would do.
Good Luck!