All the "fix" does is allow more beam on the passenger side so that the beam is not so short/close on that side once the lights are adjusted post-install.
Discussed this more in detail in some other thread, but cracking them open is 100% completely unnecessary. Install them first, adjust just like any other headlights, and once adjusted determine if your passenger side of the beam pattern is too low/short/close....I would bet only under very specific circumstances at night, such as heavy rain, would it even remotely be an issue, and a remote one at that.
You aren't any more likely to blind oncoming traffic than you are with your USDM lights. It is a complete myth that they need to be "fixed".
"I torch my soul to show the world that I am pure deep inside my heart...."
--William Patrick Corgan