[William Edwards] "Is it not possible to go from a Thunderbolt connection out to something like an Ultrastudio 3D Blackmagic to SDI connection into a calibrated monitor?"
I don't think so. AFAIK, SG is designed to send the UI to one display and a video signal out through the SDI port of an NVIDIA card with internal SDI outputs. That's the same thing Assimilate has done with Scratch, but something Apple has never supported.
- Oliver
Oliver Peters Post Production Services, LLC
Orlando, FL
http://www.oliverpeters.com 
