No that was not the reason but that did help. I did notice in the same position as the standard bars the cable was tight on full right lock but I had my bars rolled forward so that solved that.

In the standing position cutting 10mm of each end and rolling foward slightly made for very comfortable rideing. Sitting you stretch just a tiny bit but soon get used to it.

So before ordering new cables I would suggest you try move the controls inwards as far as you can, this will be enough to free up the cable. Then if that all works out you can cut the bars, else you may need a longer cable