So noob question on this topic, but if I understand the posts above correctly ... the only way to run Wii and GC games on Wii U from the same hard drive as Wii U games is by injecting them as VC? Which means not using nintendont/usb loader gx. Which means no rev. 1281 on the Wii games. Which means hdmi advantage of the Wii U is defeated (using TV as display) by the deflicker filter on Wii games.
Bummer if true. I've gotten very spoiled by the picture quality of Wii games using rev. 1281, not going back.
And while technically possible to work around this by storing all vWii data on the SD card slot using a large SD card, this isn't recommended?
Edit: I have not touched my Wii U yet but it's happening soon. Trying to digest all info before I start. Just read in the thread about rev 1281 that this still works on VC injects of Wii games using evWii plugin (which I'd never heard of ... so many complications). So, are "VC injects" on Wii U not natively running but instead actually running nintendont/gx loader?? Sorry, pretty confusing.