Well done, you've stated the obvious! Now please read my post and/or older posts in this topic.Originally Posted by Zidarri the Exile
I've already argued against this point, but I'll restate my argument. Just in case. I believe Jyuuken can be copied and read by the sharingan because it is simply chakra control. Nothing else. Yes, you need the Byakugan to use it properly, but any ninja with the ability to control their chakra well can use Jyuuken style. This is not to say they can attack the inner chakra system, however. That is where the Byakugan comes in. This is also the reason the Hyuuga clan members are the only ones to use it.
In short, I'm saying the Byakugan is complementary to Jyuuken, and not the other way around. Jyuuken can be used by anyone, but needs Byakugan to be used effectively. Haku's ice-mirror jutsu on the other hand is created using Haku's bloodline limit, and cannot be used otherwise. Hence why Kakashi cannot copy it.
Because of Sasuke's ability to see chakra movements with the 3-pupil Sharingan, any Jyuuken style attack would be useless against him.