Hacking Transferring Wii U games from USB back to SD.

[portugeek]

I spent a good portion of last weekend ripping my discs with disc2app, and installing them over to the USB harddrive. ...and I'm still not done.

I was thinking about buying a large SD card and ditching the USB drive all together. Would moving those installed games be as simple as using the Wii U's memory management screen, or is there a special app required to move games from a Wii U formatted HDD to a FAT32 formatted SD card?

I'd hate to have to rip them again, THEN install them again. That process can be pretty time consuming.

Also, is there any loss of compatibility or speed when playing off the SD card vs the USB drive?

Thanks in advance for your time.