[3] Before its release in the United States, Sony decided that vibration feedback would be removed from the European and American versions of the controller.
[7] Another theory for the vibration feedback being dropped was that Sony simply wanted to keep the price of the controller down in order to maximize user adoption.
Fans of a smaller form factor, Japanese players complained the very long hand grips made the controller too large to be held properly and the lack of a rumble feature in the U.S. and European models are the most commonly cited reasons that Sony decided to end production of this controller and redesign it.
This is due to the fact the controller's type ID that is reported to the game is changed when the button is pressed.
[2] MechWarrior 2, Ace Combat 2, Descent Maximum, and Colony Wars were among the shortlist of 27 PlayStation Flightstick compatible games.