obito who has now perfect kamui ,doesnt need even perfect susano
intangibility is stronger than susano’defense
long range kamui is stronger than susano’attack
so what is the need for susano ,unless it is so special susano
NO, i don't think he wants to damage his eyes. Plus he said himself it would take a lot of chakara to go to that world where sasuke is and then he has to find him. point it he need hi chakara.