Board Thread:General Discussion/@comment-4957813-20131130185522/@comment-5398287-20141001073558

StealthBlade98 wrote: just seems odd how after that full 17 months training where he looked great in his fight that zabimaru would not give him the actual name to release the full power. What about Ikkaku? Is his Ryumon Hozukimaru an incomplete bankai as well?

I mean i could see the possibility that ichigo's Tensa Zangetsu bankai was also incomplete due to the suppression of his full powers but just seems weird Zabimaru would gimp renji power and cause them to be at a disadvantage. But i wasn't aware Yamamoto stated young bankai's could evolve over time. Was this stated before his death? Ichibei stated that Renji's Bankai was incomplete because Zabimaru did not have confidence in Renji being strong enough to wield the full power of his Bankai, so he gave him a much weaker version instead. However, Renji proved his strength to Zabimaru after learning of what happened, so now he has the real deal.

And yes, Yamamoto stated that before his death, during his fight with Royd!Yhwach, in chapter 509:

Yamamoto said: Are you beginning to regret not stealing my Bankai as soon you had the chance? But no. I know the truth. You did not choose not to steal my Bankai. You were unable to do such a thing! The method by which you steal another's Bankai requires you to know and fully understand that Bankai's power. Do you deny it? This is why your people are wary of Kurosaki Ichigo. Little time has passed since he achieved Bankai. It still has room to evolve. I, on the other hand, have never revealed my full power, even one thousand years ago. You cannot steal that which you do not comprehend. Remarkably simple.