User blog comment:Godisme/Pure Speculation Thread/@comment-1909150-20100410070746

@Godisme - actually it is related somewhat to his shikai. you see i believe the original theory was that his bankai would be similar to Baykuya's, just a larger version of his shikai. so in gin's case, he could produce more blades to stretch. basically it would be a larger version of his shikai which was only one blade