If you are looking for a video teaching how to replace the ball top of a Mad Catz Street Fighter IV FightStick Tournament Edition look no further. You’ll need a Sanwa LB-30-N Joystick Bat Top and Sanwa Joystick Adapter. I bought my parts from Lizard Lick.
To replace the ball top for a bat top, you will need to remove all the hex screws and open the top of your FightStick. On the bottom of the joystick, put a knife or a flat screwdriver and loose the ball top.
Watch the video around 4m10s to see what’s the procedure looks like.