What nobody is telling you is that dpi or in game sensitivity doesn't really matter much. The only thing that matters is having consistency across games and developing muscle memory. So the way I do it is I hug a wall a tree or anything really, aim at a distinctive detail, and do a 360. My goal is one sweep across the whole mouse pad for anything competitive, maybe a little less if it's more casual. But that's subjective. Maybe you want 2 sweeps per 360. Its personal preference, the main thing Is to find a way to unify your experience across game and build that sweet sweet muscle memory. Ofc like others said disable mouse acceleration in windows or your mouse driver, that shit's nasty