Yeah i've used 120, 144, 165, 240 and on 480 currently and it hasnt ever made me better at the game. I can get a measurable difference with the reaction time test website though (probably about -10 to -20 ms but seeing as the human response of aim and shooting at a target takes around 500 ms for me it probably doesnt make that big of a difference). I love having 480hz for aimlabs though.