The fact is Xion would be pronounced Shion in japanese seeing as there isn't actually the letter X in the japanese language just like there is no letter L. so it's said(Zee-on) its said (Shi-on) get it Xion equals Shion. I've looked over some of the scans untranslated and studied it a bit, with what I do know there isn't a doubt in my mind that I am right.