ok u know it by trying some different cfgs. like for exaples from pros

even if u make the sens m_yaw +pitch and cl_yawspeed+pitch

the same still the cfg feel so much different with
some its easy to hit rails (like czms) with some its better with the lg (coollers) or plasma ,
trust me its really a cfg thing that cooller cant hit rails his cfg is the shit for flicking rails impossible to hit

so my question which other things in the cfg changes the mouse feeling?
maybe graphic thing change it too?