Hi AK,
You're the one who got me started on the frame mod business with the internal DI2. My DI2 cables are now completely hidden through my handle bar, headset, and frame. The next logical step would be the elimination of the exposed brake cables/hose. The best way I can see to achieve that would be wireless Etap with hydraulic brakes. And that can only be accomplished with quick disconnects at the couplers.
Does the Goodridge hose have any problem with very tight 90 degree bends?
CJ