Great, thanks. I might just stick with campy + jagwire then, the jagwire brake cables seem to work very well and they are a bit lighter than the campag ones.
One problem I had with iLink + campag in the past is the links getting stuck inside the lever body, It was a nightmare! Do you use some sort of non-iLink extension for the channels leading into the levers? Maybe it was something to do with the standard campag cables being slightly narrower or something, so that the channel is a very tight fit.
I use Di2 and don't have a problem with the brake cable housing sticking inside the lever body. It fits very tight in the body but easy enough to push out with a tiny screw driver.
I can't see a problem with using a short length of Jagwire or something inside the lever body. That'll definitely solve your problem.
In fact, Nokon cables use quite a long length of standard cable, under the full length of your bartape, before it becomes little beads.
might be worth looking into if you want to loose weight.