Yup, saw that Lucas. That's okay. According to Steve there, the flight director is handled by the G3X Touch screen itself. I guess the fact that the GMC 305 has flight director functionality also is because the "legacy" G3X doesn't have FD capability on its own? No matter, regardless, for my purposes.
If I'm thinking this correctly, the TO/GA capability is also handled directly by the G3X Touch screen itself, independent of the GMC 305 or Vizion. I'm mildly humored that it uses a discrete input line through the engine sensor module, but hey...
Lots to chew on and debate in my head this week.