but your wrist/hand position is not - it's trying to make up for the lack of the feedback coming from the device itself.
Fair enough.
As for the dpi/pixel settings, I don't really understand what pixels you are talking about in this context (yeah better mice allow you to change the dpi of the sensor of the mouse, but with no mouse pointer present it makes little sense to speak of pixels IMO). I guess you mean that you use no further software amplification (minimal position of the ingame mouse sensitivity slider)? Something like when you use only analogue zoom on a camera, without adding any digital zoom (which would only "enlarge" the image without being able to bring out more details anyway)?
Each pixel/dot of movement detected my by the sensor on my mouse is one pixel my mouse cursor moves on my screen because I have the Windows' mouse acceleration (enhance pointer precision) disabled and set to 1:1 sensitivity. If I put my cursor in the middle of my screen, I can move it to precisely the edge and back by moving the mouse the same distance on the pad, irrespective of the speed of movement. In game, with no power slope set, the mouse widget displacement works the same way.