PS Jammed Stab,
I don't think Boeing are suggesting that the inputs continue as the airspeed increases. I'l paste below so it's easy to reference;
Throughout
the takeoff roll, gradually increase control wheel displacement into the wind only
enough to maintain approximately wings level.
So what happens is that aileron goes in as required until the point is reached where it is sufficient and then it is held. (this is normally only a very small input) My experience is that as the airspeed increases and slightly less rudder is needed then the aileron is reduced a fraction with the rudder..... almost like they are connected really. Until rotation of course when the into wind aileron is pretty much doubled or trippled in order to keep the wings level.