If you go to true 2x scaling, things will be the same size as 1920x1080@1x on a 27". For me, that's HUGE and you don't get enough screen real estate for a 27".

If you go to true 2x scaling, things will be the same size as 1920x1080@1x on a 27". For me, that's HUGE and you don't get enough screen real estate for a 27". If you use 1.5x scaling you will lose sharpness because things won't line up to pixels perfectly.