Back on topic concerning the anime.
I would like to bring to attention about JC Staff has omitting what could be a very important detail concerning Yuji's powers.
This occurs in the fight with the Aizen siblings (novels vol 3 and 4, anime eps. 10-12).
When Sydonay stuck his hand inside Yuji's body to find out what's inside of him (and inspired the parody Syd x Yuji yaoi sequence in the DVD speciall
), the anime only showed him being kicked off by Margery before he could molest, er, I mean search Yuji any further.
If you want to find out how the Reiji Maigo ended up in Yuji, refer to this post with tons of spoilers.
http://forums.animesuki.com/showpost...&postcount=191