I finally decided to give this a shot, but it won't read from the USB hard drive at all. It's formatted to Fat32 and works perfectly fine with Nintendont and USB Loader GX. I did a somewhat long search and couldn't find a solution to this.
For what it's worth, I also tried putting only WiiStation on the USB hard drive and selected USB in the Homebrew Channel, but after a short load it stayed on the SD apps.
For what it's worth, I also tried putting only WiiStation on the USB hard drive and selected USB in the Homebrew Channel, but after a short load it stayed on the SD apps.