User blog comment:Godisme/The Fire3/@comment-1268838-20120912134614

I don't know, I like Yamamoto's Bankai. I feel that anything 'bigger' than his Shikai would have been utterly ludicrous, considering the sheer power it already possesses. For a swordsman of Yama's caliber, a sword that kills anything with one blow and a shield that makes him untouchable seems up to par.

One thing I'm curious about is the reason for Yamamoto's flame shroud initially being invisible. Similarly, it was not Yama's spiritual pressure the other captains sensed, but the effect it was having on the atmosphere. When he told Juhabach that he'd allow him to see it, it reminded me of what Aizen said about having to voluntarily lower his spiritual pressure for others to be able to feel it. Speculation of course, but considering how powerful Yama is, I wouldn't be surprised.