You see how the c-ring has a hole just slightly to the right of the blue marker? - it should align with the pin underneath the headset cover.
Cheers
So thank you for this diagram and feedback. I removed the handlebars and spacers so I could see exactly how the bearings, c-ring (i.e., split ring in the diagram), and headset cover (i.e., group cover in the diagram) were fitting. I also compared with Henry Chung's frame build videos to ensure everything had been placed correctly. I also ensured that the headset cover's pin was aligning with the hole in the c-ring.
After spending some time on this, I've concluded that there's something wrong with the interface between the headset cover and the c-ring. The headset cover simply won't descend enough to completely cover the c-ring and remove the gap. Here's an image of how the c-ring is fitting into the top bearing. This seems all correct:
Now when I place the headset cover over the c-ring, this is as far as it goes:
Again, I ensured that the headset pin was aligning with the hole in the c-ring.
I compared my c-ring with Henry's c-ring in the
video of the new EPS frame he did a couple months back. The look to be the same, but perhaps different color?
Am I missing anything here?