- you can only update the firmware on the PC as covered in the film. On the ps3, you only patch gt5 like normal.
- The DFGT option for FFB value applies to all ffb wheels. I have my wheel set to Simulation and I assume it works as described in the directions. If you're not seeing any noticeable changes by altering the FFb value then I would say something is wrong with your wheel. When I turn my up to 10 it makes a huge difference (from 7 or so where I normally keep it)
- controller sensitivity is for the DS3 pad (not for the wheel). Darrin was mistaken on that part
Oh btw, You can of course use the in game menu to adjust some settings. Make sure you bind that menu to a button in the config. I can't recall if the film went over that