I don't mind the mouse lag in normal use, but it's very annoying in FPS games. I've actually spent a day or two tweaking OS X mouse acceleration curves and what

I don't mind the mouse lag in normal use, but it's very annoying in FPS games. I've actually spent a day or two tweaking OS X mouse acceleration curves and whatever settings I could find. At the desktop I could get more "windows-y" feel, but always when I tried new settings TF2 the feeling was still wrong. The lag author described is a plausible cause for my experiences.