How do I change HUD size?

I know this has been asked here before and there are countless posts on the internet about it to but pretty much all of them either never conclude with an answer of the default solution is to change the safearearatio X and Y value in coalesced.bin using an editing tool such as the one made by Gibbed.

I've tried this and on my 2560x1440 any number higher than 0.10 makes no different at all to the size of the HUD, particularly the powers bar when holding spacebar and the quick access bar top left. It is simply too small to be playable.

Anyone know why changing those values doesn't work when all the OLD posts I've read seem to suggest it does or rather did? Did an update break it? Are there any alternatives? (other than down-scaling my resolution.. that isn't going to happen son).