Have you had your 5080 ISF calibrated? If not, I recommend you consider having it done as it made a world of difference for my 5080. Brightness is only one of many interrelated settings that when properly adjusted will ultimately yield a superb picture from your 5080. I've not compared a PRO1150 to my 5080 but from reading this forums many posts on the 8G Kuro line it was a big step up from the 7Gs.