@Razh:
I hate to be the guy who defends Kubo, but it's possible Bach gave Royd more of his power just so he could tank until he finishes with Aizen. From couple of chapters back, seems Bach can award powers as he wishes. When you think about it, he's such a cruel man. He knew Royd would die, and that all the power he's given to him will return back.
Somehow I have a feeling I thought this through a lot more than Kubo did. Ffs, the guy lets other authors create canon for him. God knows what would happen if he spent some time on these forums.
Bach can award certain abilities as he wishes. A "meaningful" portion of his soul i think was how it was described. It's why the sternritters get letters corresponding to their abilities and I guess stronger power boosts (I wonder if he'll even extend it by shoving in more letters with an umlaut over them), and that's the part where they get a more advanced level of power. So like As Nodt gets his weird fear powers, Loliquincy gives people a case of explosions, and Masque becomes the one entertaining Quincy. My interpretation was that to distribute that you need to go through the initialing process, else it's just a bit of soul you get.
Either way, there really is no way you can write any plausible way that the outcome came that way with Kenpachi's considerably broken ability.
Speaking of puzzles/plot holes, here's Bambietta using an ability that allows her to cut through several walls. The same one she used to cut that fucker in half couple of pages before.
! http://mangasee.com/manga/?series=Bleach&chapter=544&index=1&page=11
http://d220.diamond.fastwebserver.de/series/Bleach/0544-011.png
And that's the only time she used anything like that. Next time she fought, explosions. Anything she hits charges up and explodes. No cutting squares with spirit particles. It's like Kubo just changed his mind about her power.
Maybe that was like quincy arrows or something, idk. Explosions was the power she has when she undergoes vollstandig, right? And she can't use that while she has Komamura's bankai But yeah, it's probably more likely he just completely forgot.