I play on 4 as I play a more passive game. I like ranged weapons so I can make sure I enter more 1v1 instances rather than get stuck in 3v1 or 6v1 encounters because I only have a short ranged setup. If I play this way with a high sensitivity, my aim is like Michael J. Fox trying to shoot a bee's clit with an hmg from a tilt-a-whirl.