I have a Surly Disc Trucker and have a slight problem.

When originally assembled, brakes work fine.

However, once handlebar bag is attached, I have to move the cables from their rest position to being pressed on by the Handlebar Bag. This, in turn, cause the once fine alignment of the brakes to be changed, causing an adjustment to the brakes to be needed. This varies in amount of adjustment and I am not that familiar with the disc brakes, usually causing me to get more professional help to get the adjustment right.

Is there a better way to attach handlebar bag to the bike where it won't press on the cables?