i've read at some forums that it's not possible to go under 1
i tried sens 0.4 at goldeneye source (source engine), but it doesn't work, i can write "0.4", but each time i go back to the settings it went back to 1.0, and ingame ofc it feels like sens 1.0, not 0.4
a lot of people in cs:s use a sens lower than 1 with high dpi and raw input, but in cs:go raw input causes m_filter to be forced on so anything over 450 dpi doesn't track properly with raw input off
for cs:go <500 dpi is necessary unless you like interpolation/tracking issues