A frictionless mouse is ideal, but they do not exist. What mouse set-up do you use to get it as smooth as possible? I currently use a wireless laser mouse, no mousepad, and then i sprinkle a little graphite on the desk for some extra slickness.
I use a cm storm Xornet (wired gaming mouse) with on the fly dpi settings and a regular mousepad. I have my setting turned up pretty high so I can turn with just a flick of my wrist.
I'm unsure if this is a friction question or a sensitivity question. I use a logitech G500 mouse with a large rocketfish hard mouse pad on the speed side. As for sensitivity I prefer a lower sensitivity on my other combat classes and I just carry it over to my infil. I use 25cm for a 360. I am toying with the idea of raising the sensitivity for sniping, but that would probably just cause more problems than it solves. I like the idea of the graphite, but my wife would probably skin me if I tried that.