Hi ChristEr
I did get the XC14 bars in 70mm, it’s not too aggressive with stem spacers puts but mines set up as xc marathon bike, depends on usage and if you’re used to that position you still get some adjustment but nothing like with separate bar/stem. I wouldn’t swap back as pros are worth it but the buzz and stiffness is noticeable.
Integrated bars/cable works amazing, you’d never know they run through the bars by feel etc no extra weight in the steering or binding. There isn’t much slack needed in the system though with the routing down the bars in my case and between the bearings, as the lengths are pretty fixed as you don’t need too much extra at the front for bar movement. I suspect it would be more of an issue with the top cap style depending on the angle entering etc as you’d need to allow more hose/outer housing. With the integrated bars you do lose some steering angle compared to the headset cap but this would only really affect you turning the bars beyond anything like normal.
Over 1000km on the bike now and really pleased with the bike.
