Dodecagon Try not to just be ADADADAD in the middle of there crosshair, it pays off more to stay out of their crosshair/FOV than to just jiggle around within it.
Not necessarily. If a scout stays in front of me I'll miss literally everything, but the moment he strafes out of my view I usually manage to snap my aim and hit him.
..but maybe I'm just abnormal and awful at TF2.