I'm trying to get Sinistar running on my JROK with a Williams 49-way stick. I have two of the optical sticks and both are giving me the exact same issue. I built a harness to connect the sticks to the JROK board. They are both wired properly, and, there is no break in continuity between the stick and the board. The issue is that all directions work except straight up. Pushing the stick in any other direction results in the proper direction (including diagonal left/right + up). This is on both sticks, so, what are the odds that the same exact problem would be present on two different sticks? I would think not too high, but I guess anything is possible on 40 year old parts. I went back and double and triple checked my wiring against the schematics for the game and the JROK manual for the header on the board. Is there something I'm missing here?