i had some stutter in my pitch control, and it was squeaking. i regreased the joystick, it lessened the squeaking and the stuttering at lower resistance. didn’t solve it entirely. used silicone lubricant, spray type. i hope it helps edit: i fixed my stuttering pitch control completely. follow this guide until step 6, * turned the joystick upside down & did not take out the spring nor clean off the red grease, but instead applied more, used silicone lubricant, spray type., . (1) sprayed the rails (where the joystick makes contact with the housing), once when joystick is neutral and at then at the 8 directions. (total 16 times) (2) when you put the cap back on, i moved the joystick to negative pitch (the direction where it was stuttering), and screwed on the cap. (3) before i reassembled the thing, plugged the joystick on to the computer and stuttering is gone.