This is the mod:
It is pretty simple. First, you remove the droop screw (or one that doesn't stick out below) - this should already give you a few millimeters of droop. You may notice then the suspension arm is still touching the chassis plate, and if you unscrew the shock from the suspension arm you should see the eye of the shock extends further down than the mounting points on the suspension arm - so you can gain some more droop.
You can do this by getting out a Dremel and shave off material from the piece of the chassis plate which normally stops the droop screw. Alternatively, you can remove the lug alltogether: If you choose for a Low Roll Center Modification too you have to remove it anyway.