Want to play US GC games on your PAL Wii? Forget Freeloader (apparently, not tried this myself yet):
1. put an orig gc game into the wii.
2. hover the remote over the start button.
3. press the eject button.
4. press start at last second. i.e. before the button is disabled
5. swap discs really fast i.e. get it started before blue light comes on.
6. away we go AR and imports. note: AR not needed for imports
From http://forums.maxconsole.net/showthread.php?t=51099
Update: I’ve just tried this and managed to boot my old gamecube pal action replay (which can’t boot normally), will be seeing if I can get gamecube homebrew to work later