User blog comment:Leo Kazisaski/Bankai levels/@comment-4509522-20121007163413/@comment-28861328-20121008181431

And yet, nobody complains when I reintroduce Shukai into my stories, which, unlike Sei's stuff, is actually the level beyond Bankai. This is fan-fiction. Granted, its only for a specific bloodline of Shinigami, but I certainly don't see people getting their panties all bunched up over it. Bankai can evolve. We know this. If Bankai can evolve, than advanced stages of Bankai are plausible, considering not everyone and their dog can make their Bankai evolve. Obviously Byakuya, Toshiro, Komamura, and Soifon couldn't, but Yamamoto and Ichigo have the power to.

This notion that everything has to be fair so that one character can't be immensely stronger than another is giving me a headache.