That's actually a nice workaround. Thanks! However, for the avarage nintendont user this might be too diffecult. Might it be possible to change the vWii video mode from the nintendont loader? I mean you would probably just need to copy some code from SE to nintendont, dunno. It might be possible to add another point to the settings "Change vWii/Wii video mode", in which you can choose between 480p, 480i and 576i. A change to this setting should take effect right before the game is started and the value of this setting should be settable via args, such that it works via USBGX and other USB loaders. That would be really confortable for those problematic PAL games and we could just add a line "Needs vWii/Wii video set to 480i/576i" in the compatist, which even the dumbest user should understand.
No idea how diffecult it would be too implement something like that. If the you return to the loader the vWii/Wii video settings should revert back to their original setting. That also might be hard to implement.