Well, I put it together last night and so far no joy with the Atomos gizmo. Not sure why, but I've reached out to them. I've checked all my cables, my sled etc, the issue seems to be at the converter. Anyone ever flown a dslr with the Atomos converter?

Update: Atomos checked my cables and gizmo and everything is working fine. After more trial and error, I figured out that the Atomos configuration has to be plugged into a different input than my Canon XF300 SDI connection. It's pretty odd, but I think it came down to my monitor configuration.

I'm now looking to find a monitor I can fly that has Focus Assist.