Board Thread:General Discussion/@comment-25360536-20140920031731/@comment-9468724-20140921160746

However, the only other possible example of a perpetually released Zanpie is Nozarashi, which has an actual release command. I am assuming Ichigo's very short training didn't have him go through it, for the reason I mentioned, someone who has Bankai can forgo Shikai release commands (in all honesty, how much has he used his Shikai past that fight with Byakuya)