User blog comment:Xilinoc/Ch. 550 - Blazing Bullets/@comment-2211792-20130925141558/@comment-11051098-20130926020956

Control or no control, it's not been stated how well a stolen Bankai can be used by the one who stole it. Äs Nödt stole Byakuya's Bankai, and he used it pretty well. At least the basics.