Board Thread:Questions and Answers/@comment-29441363-20160811230119/@comment-44061-20160813163528

You did not mention Zangetsu which was a mistake. Your making a claim that they saw Zabimuru but you have no proof that they saw it, simply because it was there doesnt mean they saw it, if anything it was meant for the reader to see. Ichigo and yoruichi gave no indication they saw anything. In fact renji was making a point that he was capable of training for bankai (to the reader) he didnt need to affirm anything to ichigo or yoruichi, so thats a flawed reasoning. There is no canon (manga) proof of zanpakuto spirit being seen by another outside of the Tenshitai manifesting it. When Katen Kyokotsu manifested itself it couldnt be seen by anyone but shunsui. When hitsugaya regains his hyorinmaru its manifests and Cang Du didnt see it. Manifesting it is a requirement for bankai, meaning pulling its form into the physical world, doing so doesnt mean others can see it. Its visible only to the wielder. Also your view of what yoruichi said involving zaraki are way off as it doesnt prove your point. A wielder manifesting their zanpakuto into the physical world isnt unheard of as she just exaplains the whole thing. Everyone capable of bankai can do it, doesnt mean everyone sees it.