No there is no little movement when you make a little twist of the stick the rudder moves all the way, there is no fine adjustment like it is for the XBox the rudder handles differently for both consoles. It is digital and not analog. When trying to add a little rudder it violently jerks one way or another. You and devs may not even be aware of this issue.
It is simply digital on PS3 and analogue on PC/360.
Nothing we can do.