I've installed Project M on my SD card, and brawl on my HDD. I run it through USB Loader GX and it works fine.
However when I want to add Brawl mods, like character skins, I changed the code in RSBE01.gct to File Patch Code v3.5.1.
Now the character skin works, but not Project M. I tried using the CGT fusioniser to fuse the codes, which worked fine with other codes, but when using it with Project M gct the game will no longer be able to load.
What am I doing wrong? How do I solve it?