Board Thread:Questions and Answers/@comment-10797017-20130627100621/@comment-4161952-20130904210029

Yoruichi doesn't use Zanjutsu as her main combat method. She wouldn't use her Bankai against the Quincy. Where is she, anyway?

Main possibilities for SWPs are Mayuri, Urahara and Aizen. All three have genius intellect and Mayuri and Urahara are developing counter measures. Mayuri has revealed this suit of his he had been working on.

Jushiro can send any projectile back to his enemy. This ability is useful, however I don't consider him a SWP possibility. He still has his sickness I believe.