Captf,
Recent information has come out from Airbus (withheld at the hearing...) about the rate of change of the rudder load limiter as well.
The rudder load limiter basically uses a jack screw to retard movement of the pedals, thereby reducing movement of the rudder. . If you get the airspeed trend arrow on the PFD more than 10 knots long (IOW if you will be going more than 10 kts faster in 10 seconds than you are now) YOU ARE OUT RUNNING THE RUDDER LOAD LIMITER, and you can break the aircraft. The max rate of change on the rudder load limiter is 1 knot per sec. The A300605R particularly at low levels accelerates MUCH faster than this.
So anytime you see the trend arrow greater than 10 knots long pointed up you are not protected by the rudder load limiter.
As to AA;s training. They never advocated anything other than cooridinated rudder. There was a long discussion about crossover speed and high angle of attack and rudder inputs (VERY RELEVENT to loss of control crashes in the 737) but nobody was advocating stomping rudders.
The airplane is a trap for a Pilot induced oscilation in the yaw access at certain speeds.
Cheers
Wino