
No , not because it takes huge chakra , he chose it because he can't deactivate that !He just closed his eyes like Kakashi when kakashi newly used MS because it takes a huge chakra and due to both eye's different vision
Thats mythrecharge huh... So that might be a draw back to Sasuke's powers, recoup time. Then what's Naruto's? As far as I can see Naruto has unlimited power.
Well, I have never seen anyone deactivate the Rinnengan so I am not really sure u can. Also, Sasuke is using the an eye which > Rinnengan while only having half of Hagoromo's chakra so it probably drains more chakra. So Sasuke is probably closing his eye to save conserve chakra
I would have thought that Hagoromo's chakra would be immence. Even half of it, I think would be as much if not more than Maderas.