Hi, I currently have KHII BC Riku 40% guilted and I have 3 other KHII BC Rikus, so to make things more efficient could I fuse the 3 other KHII BC Riku medals into one then fuse that medal into the 40% guilted version I have and will it perform the new guilt calculation 3 times or will it perform the calculation only once thereby wasting the other riku medals?