Guess that's the relation between Suzumebachi and Soifon's bankai. It's a one hit one shot dealy.
And gotta love the gunslinger look Stark's got going, but I've gotta strong inclination that he's got a 2nd release. The design is too simplistic. Some snake like ropes, fuzzy attachments to his clothes ,Lillinette's eyepiece, and two guns?