akatsuya

Percentage of One for all that a user can use varies from one to another. Just like Midoriya needed to create one the Full Cowl mode, All might upon obtaining the quirk could use it at 100%. I assume that it is because of the degree at which they have trained their bodies. After all All might trained longer before obtaining one for all, this can also be assume from his conversation to Midoriya before the entrance exam.

Maybe cuz I'm using the informations available in the manga.

you will see in due time

It's more like he got reincarnated without his memories but with his will from before dying. So he instinctively had the will to strengthen himself, while not knowing why and what this entails.

I'm still here, so don't worry new chapters are coming

It's up to you to read or not. But still I'll keep your comment in mind .

Don't worry ,I'll keep on writing it as long as there is someone who likes it.

No he's different but at the same time the same, you'll see it very soon

Thanks I will definitely try to keep up to your expectations