Originally Posted by Rasenganja
On another note it will be pretty pathetic if none of the Hokage can free themselves from edo-tensei Madara did it, Itachi did it... So they better hulk jump through that damn roof in a few chapters..
Madara and Itachi had help.
Itachi redid the control aspect of the tags so he could control himself with "Protect Konoha" as his prime motivation .
Madara could only free himself after the jutsu was released from the user. All as rebind the technique with himself as the user.