why do they both shake they're aim does anybody know
some people aim with only their wrists (and if their sens is high enough their fingers) which causes their aiming style to be very flicky and shaky (because our wrists aren't the best for slow precise mouse movements; in fact, if you try to slowly clear a corner with only your wrist it'll probably involve one or two stutters)
other people (usually with lower sens) aim with their arms (chest, bicep, and shoulder muscles) and micro-adjust with their wrist.
people with really high sens as a result end up being really shaky with their aim