Great work adriatic!
I had the same problem with the twist axis of my wingman force 3D and i solved it by buying a x45 ! Well I tried to do something like that, but without success (I even tried the contact cleaner thing that I found on a forum -can't remember where-). After that I decided to change the pot (I had already changed the trigger of my first joystick, a logitech wingman extreme, so I wasn't really afraid) but I didn't find a suitable replacement.
Final solution after some months without a rudder : the previously mentioned x45!
Just out of curiosity: how did you reassemble the pots? glue? You did remove the heads of the pins, didn't you?
Anyway thanks for sharing!
I wouldn't get very enthusiastic if I were you. I've done that many times, together with more drastic measures on my stick (non logitech). It worked just for a while and then response would go crazy again. I've achieved best results with replacing pots with new ones, but it lasted only a week before they were gone also. During that week, however, stick was surgically precise.
The reason for this (sort of jumpiness of response in windows joystick settings) is "wear" of potentiometer. It is hard to find good graphite potentiometer. Cermet pots are much more durable, but are expensive.
I intend to save some money, buy new stick (doesn't matter which one), make it life long precise and extract rudder to real pedals.
Hey I have a similar problem with my LogiTech 3D extreame Pro. The problem that I have with it is that when I twist the handle to the right to control the rudder it will not fully go to the right,the stick does but in the game the rudder will only move about a quater of the way. After I unplug it and plug the usb connector back it the stick works fine for about 10-20 minutes, after that it's the same thing again.