I managed to create wad with WBFS "channel creator" and install them... but game do not load.
Result is a channel appearing in channel list, if I click on it (for Mario Kart for example) I get a first animation but then the game did not load from usb HDD.
If I use the USB Loader 5.1 via HB or direct channel, game load perfectly.
In WBFS options, I use a common key dumped via "Key Grabber", the USB_Loader_1.5-LAC1.wad and default wiicrazy...
Thanks for any clue