restricting ama won't make a difference.Sasuke had access to Final Susano'o which tanks all of Kakuzu's attacks.
Sasuke solos with low difficulty.
Taka Sasuke def. did not have acces to final Susano, .. so give this a look over
Kakuzu is able to counter Susano'o in many ways as his arsenal is moreover perfect for exploiting the true meaning of which Itachi himself has given:
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The first way in which Kakuzu is able to defeat Susano'o is by using the well known "pull the user from under Susano'o". Now Kakuzu can do this numerous of ways, or he can combine a tactic of two techniques to successfully disable Susano'os use within his battle. Here it was seen Gaara processed/implemented the underground maneuver to pull Madara out of his Susano'o:
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The combined force of Jiongu's detachment capabilities (making body parts go underground, then resurface):
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And Kakuzu's Katon mask's ability: Zukokku:
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The Susano'o user's foot-holding would be burned to nothing in which their underside would be non-existent, in which would leave an opening for Jiongu's capabilities to take a hold of the Susano'o user, and possibly bind their movement restricting them from movement. Within this happening the deployed arm would take a hold of the Susano'o users leg(s), and pull them from under or directly out of Susano'o.
Footing:
1. Stability of feet: a stable secure position for or placement of the feet when standing or walking
2. Base for progress: a foundation or basis for further advancement or development
3. Status: the status or condition of something, often in relation to something else
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The second way in which Kakuzu can completely counter, and defeat Susano'o is through Elemental Ninjutsu, with the addition that Susano'o is going through transformation. Why exactly do I say Elemental Ninjutsu + Susano'o going through transformation stages would enable Kakuzu to secure a scenario of defeating a Susano'o user is because.. Danzo. Danzo's direct analysis within his fight against Sasuke gave away that exposed parts on Susano'o can be used to triumph:
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And another shot of the gap formerly shown in Susano'o is within Itachi's as well:
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With that being said/shown I'll move on to the Elemental Ninjutsu part. Kakuzu has the most elemental affinities within the Manga as to date, and he was said to be quite proficient in the use of his 4 elements, in which he is able to combine the natures together to form a power triple affinity attack:
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So with a combined force (singular attack), or multiple assaults with different elements. Some may argue that any Susano'o user would protect their exposed spinal cord (the gap) when going through the transformation stages, and that is true. However, with the capabilities of Kakuzu's mask able to go aerial, and the fact that the Susano'o user would have to fend against 3 aerial masks, and Kakuzu himself one could only concur that the Susano'o user would succumb to the multiple attacks, and have their gap penetrated:
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Susano'o stands no chance in the presence of a true monster such as Kakuzu..
How .? enton arrows are tanked and the amertarasu removed from Kakuzu's body, thereafter, Taka Sasuke's susano can in fact be breached .. And Im pretty sure Hidan can solo Jugo Karin, while Kakuzu's lightning hearts Solo's suigetsu
