User blog comment:Lia Schiffer/399: Deicide/@comment-1432572-20100408024515

@Lia, why would you think his Shikai could take on Ichigo's Bankai? Gin hasn't done anything for us to assume he's close to Aizen's, Shunsui's or Yamamoto's power. Him using Bankai is a right fit for me, considering Byakuya had to use Bankai on Ichigo.