If you use the rudder in the X35T, I recommend you remove the centering spring on it.. *IF* you are experiencing spiking problems. You will have to figure out where the center is (HT, can you help us with this one.. add a graphical display in cockpit so we know it's centered? if not, okay.) I removed it today after trying other thigns to keep my rudder from spiking and ultimatly getting the "don't move controls so fast" message.
I hope this helps you if you have the problem, sure did for me!
-SW