Board Thread:Questions and Answers/@comment-26955371-20150920164120/@comment-26955371-20150920175307

You're right but I think he couldn't have lied, Ichigo had difficulties against him, even before he talked about his Zanpakuto's speed. Gin stated that his Zanpakuto was the fastest then he said that it ( his Zanpakuto not his Bankai iirc ) was Mach 500, Ichigo couldn't even see it ( and he was paying attention ), Aizen knew Gin was going to betray him and he couldn't react to it ( he was fighting vs Yoruichi/Isshin/Urahara in his previous ( so weaker ) state ) I think it could be that fast