I tried it with another default.xbe from a different program, one that is a GSE, because this is going to be a GSE, but it froze, of course.
game save exploit
Sounds like another Yoshi in the making.
Simply replace the config.xml in the gamesave .zip file using WinRar. Don't Unzip it if you want it to work! Unless you are FTPing it on and taking it out via a memory card.