Board Thread:Naruto Discussions/@comment-30881771-20170604165052/@comment-25122992-20170605102306

Well, Hashi and Tobi were changed only slightly, and even these changes were connected rather to the Edo Tensei body (i.e. a zombi-like appearance of the reanimation before they are "rejuvenated" to look almost like normal people) than to their actual age. Kabuto had to "rejuvenate" reanimated Deidara the same way, not because his human appearance was old-looking (he was only 19, after all), but in order to eliminate the initial defects of the Edo-body appearance. That's why I don't think that Edo Tensei user can simply change the physical state of the reanimation's body at will whenever he wants to, otherwise Kabuto would've reincarnated Nagato and Hanzo (for example) in their prime state as well, without any handicap of the former and without the rustiness of the latter.