I guess I'm a guinea pig then! I've been applying DSR settings to all my sims & games, about 2700X1500 (double resolution on a 1920x1080 monitor). Good results so far, I'm getting between 40-60fps in DCS, but the radio and other text is small, as is the frame counter info. I tried 4k resolution on Skyrim but the microstutters killed it, 2k seems about right for my rig.