[Akiyoshi]

Hayate is also surprisingly sturdier than we tought, she seems to be getting the opposite as the wolkenritter. While the Wolks are getting weaker over time, Hayate seems to be getting stronger, after being impalled by Curren is mentioned that Hayate's fast recovery seems to came from the fact her body is now enhaced by her Linker core fusion with Ein's which allows her to raise from bed from a backstabbing within days, unlike Signum who took over two months. Probably in the future the wolks will leave the battlefield like Arf did whent their powers decrease enough for them not being able to keep with others and Hayate's powers rise enough to stop needing their protection anyway.

On the Barrier Jacket discussion, it seems the BJ's can vary in strenght at least according to the user. Signum withstanding Nanoha's SSA was treated as pretty hardcore stuff by the people present (Dieci even mentioned being taken down by Nanoha with much less than that despite the fact she was protected by AMF from both her cyborg body and the cradle at the time). But well, that was back on StrikerS where the wolks still had a decent amount of superhuman resillence and durability (Vita VS.The Cradle comes to mind).