Looks great. You weren't tempted to go with the routing through the headset?
No, totally not. Even I hate any internal.
The difference they told was that, headset top cap only, it has a hole to get cables in. that's it. Frame keep its holes but just have blank fillers for holes. fillers come with frames. So choice is headset top cap only.
Even mines, the centering sleeve is "C" shape to allow cables go though. but we have four cables right? RD cable, Rear brake, rear lockout and dropper. Not sure I can put everything in the space of "C" honestly.