What's the beef with the yoke and the shielded cable? (not rhetorical)
There's nowhere for the Di2 to pass through - it's solid. So you have to tape the cable under the chainstay. It's not a big deal but if you're gonna say you have "di2 cable routing" then don't just leave one of them hanging around in the air, I want them all run through the frame tubes.
I've used one of those VCLS split posts on my Mason for road ultras for a while. Bit of a faff but I miss it when I went back to the Thomson for a bit. I now have an eeSilk on it for reasons I can't recall (it was on the gravel bike).
There's nowhere for the Di2 to pass through - it's solid. So you have to tape the cable under the chainstay. It's not a big deal but if you're gonna say you have "di2 cable routing" then don't just leave one of them hanging around in the air, I want them all run through the frame tubes.