Okay, door stabilzers are installed (just needed a longer socket bar; the impact screwdriver did nothing). Pretty simple install, though the directions make it seem more complicated than it was. My Japanese reading inferiority complex is starting to creep in, and I'm hoping I didn't miss a step. Oh well... the doors open, close, and don't rattle at the moment, so I assume all's good.
Aaaaand since my Cusco braces are taking a lot longer to get here than I originally expected (grrr....) it looks like I will be able to give a review of these all by their little ol' lonesome. Don't expect much of an effect myself, but who knows. Stay tuned...