Depending on your controller, sometimes the flat plates do not allow the joystick to be positioned close to the control panel, thus shortening the shaft height.  In such cases, Sanwa's "bump" plate is the solution to having a more optimized installation. 

Features

• JLF-TP-8S-SK Joystick
• S or Bump Plate 
• Black Shaft and Dust Cover (x 2) - not pictured
• 5-pin JLF harness