I'm using since last year a LG Flatron M2762D which is 27" and I've seen most pros with recorded plays at Youtube using 22" like monitors, I play windowed and my osu resolution is 1280x968 when I use mouse and 1024x760 to tablet. But I've been thinking if getting back to a smaller monitor would be better for a new tablet user like me. I wouldn't even use fullscreen on a hueg tv/monitor lol