In terms of precision, the best CPI value to have your mouse at is native CPI. Any value other than native is interpolated, which typically causes higher CPI values to discard counts, resulting in a jittering effect, and lower values to duplicate counts resulting in an angle snapping effect.
Originally Posted by drazah
That information from the guide is incorrect honestly. With the increase of DPI, you also raise the risk for calculation errors and Negative Acceleration, as stated before.
Remember, DPI has no bearing on increase of accuracy or precision. DPI is the relationship between the physical amount of space your mouse moves compared to the amount of space your cursor moves on screen. Higher DPI will just increase the amount of calculation per inch. In the realm of DPI, 800 may seem low, but its actually all that you need as compared to something thats 2500+. A mouse @ 2500DPI will have FAR MORE calculations to perform than an 800 DPI mouse, thus GREATLY increasing your calculation errors and Negative Acceleration. This is the main reason you see most pro gamers use a low DPI setting and raise their in-game sensitivity rather than use a high DPI and lower ingame sensitivity.
But at the end of the day, its mainly preference and something you should check out yourself. Personally, Ive tried all the different types of settings and came to the conclusion that the 800-1600 DPI is perfect and the absolute max I will ever need. Anything higher just causes a ton of mouse flicker/shake and youll find yourself just lowering the sensitivity anyway.
DPI is incorrectly applied to mice (it's just the term manufacturers throw around so that people don't get confused) and CPI stands for "counts per inch". You'll find "calculation per inch" doesn't exist. And what exactly performs the "calculations" you're referring to? Raising CPI doesn't increase data processing if that's what you mean, at least not in any meaningful way. You must be confusing CPI with polling rate.