You get a light where the bolt is, I think yellow. Check if the charger is mangled, many people just ram it in, but there's a position to do it, otherwise you'll end bending one of the pins
Pressfit is fine, sure, some brands did stupid standards and shitty frames out of it but for the rest the only real problem is that you need presses and extractors to change bearings.
I'd rather get pressfit, saves to glue some heavy threaded shell in your light carbon frame.
Apparently Colnago makes the C series in-house. The V series is sourced from Taiwan
AFAIK they just glue the parts and paint the frames.
I don't see how things made in China is such a difficult pill to eat for some, Europe doesn't produce anything anymore.
I've seen a guy getting the rear triangle of a cannondale full sus welded. The welder did a decent weld but of course it wasn't heat treated again and it cracked eventually
Go to a steep hill, give it some cooking, check after for leaks