T8J - R2008SB - Naza V1
It was a combination of my lack of experience, lack of genuine manufacturer's instructions, and a tendency in the videos I was using to assume a certain level pre-knowledge.
The problem was that I was connecting RX-FCU with S-Bus, but the videos I was using were demonstrating set-up using traditional. They kept saying to adjust GER, instead of saying to make adjustments to the proper channel, which may or may not be associated with GER.
It was frustrating but, in the end, gratifying to work through. Still, I'd prefer instructions. I'll fly it this weekend and see if I did it right!