User blog comment:Xilinoc/Ch. 670 - The Perfect Crimson/@comment-25897574-20160415040047/@comment-25897574-20160415211545

Those are some fair points and that would mean that Daiguren Hyorinmaru would deactivate on it's own because Toshiro wasn't ready for the next level. Being the boy genius that he is, Toshiro would definitely attempt to test the limits of his abilities. Him deliberately stopping his powers before they get stronger because he doesn't know what would happen doesn't make sense.