User blog comment:Xilinoc/Ch. 540 - The Sword Five/@comment-10301320-20130606074658

Hmm this does actually (sorta) explain something I've always wondered. Why was Tensa Zangetsu so radically different to other Bankais? This is just a guess but, it's just an imitation of Bankai (right?) that seems to be a modified Vollständig/Letzt Stil which would explain why the first release of Tensa Zangetsu resembled the same release of Uryu's Letzt Stil. No, I'm not saying "OMG ICHIGO USED LETZT STIL!!!1!!", just saying that Tensa Zangetsu is POSSIBLY BASED on the Quincies Letzt Stil/Vollständig.