Board Thread:Naruto Discussions/@comment-4682609-20140806081616/@comment-4271790-20140808031214

The EMS is just an MS that doesn't go blind. It isn't any stronger than the MS. As for Kakashi using Susanoo... I think Obito not only transferred his chakra to Kakashi's optic nerves, but I think he also increased Kakashi's chakra reserves by transferring all (or at least a big chunk) or his chakra to his friend.