Many PSP have scratches under the Joystick, because the clearance is too little.

I made a simple solution for this, i wanted to share:

A 3D printable Joystick leverage plate. You put it under the Joystick as shown in the photos. The height/clearance increases by about 0,5mm-0,7mm and the Joystick stays smooth.

Especially usefull for new reshells to prevent scratch marks.