Are you able to “pull” the cables a bit when you’re packing?
I remember when I packed my Venge in another case that was right, I actually asked the shop to leave the hoses a bit longer inside the handlebar, so there were a few CM of hose.
Do you have any photos of where it doesn’t fit with the BMC?
I also realised that I always put the handlebars in a different way compared to the instructions. I put them like this:
I am wondering if the bar could be placed like this instead for internal routing? (My last Venge with an older box…)