In my case there is no jittering at all with my PAL consoles but with the NTSC ones. The paddles work like new. Only on my NTSC machines when playing Kaboom for example, there is this jitter when the paddle is not moved exactly like in the video Merowech posted. It would be nice if he can test them on a PAL unit and the problem still persists. I‘m clueless about this issue.