mouse speed in X

[Daniel Elenius]

Does anyone know how to change the BASIC mouse speed (not the
acceleration) in X. The 'xset m' only changes the acceleration and
threshold, but what I want is a faster non-accelerated mouse
speed. I've tried 'xset m 4 1' which gives a good speed, but it makes
the mouse 'jerky', since it moves the pointer 4 pixels at a time.
Happy for any suggestions...