Kishi didn't return Hiruzen to his prime bc he would be stronger than madara and hash

[Turson]

Not really, He may have unlimited chakra but his levels are still low, Restricting the Size/Strength of his Jutsu's and stopping him from using more powerful Jutsu's that require alot of chakra.

Take last chapter for example. In his Prime he could've easily made a few clones while keeping the barrier up, Yet his Old Edo state made none what so ever.

Old Hiruzen had 3/5 in stamina it wasnt so bad. Even if he use all his chakra on one, single technique it wont mean much to him, since his reserves will be replenished instantly.

 

[Exaar]

Old Hiruzen had 3/5 in stamina it wasnt so bad. Even if he use all his chakra on one, single technique it wont mean much to him, since his reserves will be replenished instantly.

All Edo Hiruzen has on his prime State is Stamina and an Unlimited "3" level of stamina.

While his Prime has better speed/strength/Higher chakra reserves (for more powerful/Higher ranked jutsu)/ Better taijutsu due to Having better speed and strength/ Better useage of Enma also due to higher speed/strength/ Able to make more clones and so on.

Simply gaining an Unlimited amount of pretty low chakra levels isn't going to make up for all he lost from his prime state.

 

[Turson]

Simply gaining an Unlimited amount of pretty low chakra levels isn't going to make up for all he lost from his prime state.

During his fight with Oro Hiruzen used:

-Katon
-Doton
-made two Kage Bunshins
-summoned Enma
-summon Shinigami

I could miss something, but if he use all of that chakra on one technique he should be able to perform something really big. And like I said, he wont give a damn since his reserves will be replenished right after, and he will be able to keep on spamming. So... unlimeted chakra >> better speed and strenght, at least in Hiruzen case.

 

[Joshutsu]

Hashirama used woodstyle his signature tech Tobirama used water style and bringer of darkness. Hiruzen didn't show shit either.

I classify those as nothing, they just made them use those techniques to show what they were famous for. Still not the hashirama that madara faced. Plus this guy that can break edo tensei in part 2 wouldn't get his soul pulled out so easily.

I'm pretty sure Hiruzen has shown us some bigger side of his attacking pool, RDS and enma are not exactly childs play. I'm sure his other techniques lie with the others he showed are just average techniques but we will see if i am right, i am confident they arent making hiruzen show us anything that drastic in the coming up possible fight now they arent maintaining a barrier.