Oh, I think I found a fix for the whole texture issue with the scimitar, it seems the be a problem with the ItmMarioManto1 texture. I exported the model and textures from the Gerudo Prince PSA motionetc file and replaced the sword model and Mario's cape texture and that fixed the texture problem, also I now have a Mario that wields the twilight sword  . Also, I've done this for a couple of other sword models and textures, such as the Darknut Sword from the same PSA and Ike's Ragnell sword. Oh, this was all done in Brawlbox btw.

Nice stuff, especially the model(vertex) hacks! However for Marth's new sword, I used it with my texture and the sword looks great! But I noticed that some stuff was removed (Marth's tiara, cape). If it's possible, can you make a version with the cape? If not, please disregard this post. Thanks.