and how exactly is that proof?
He had absolutely 0 problems handling it when he had it. Yet you're claiming he had problems handling it after he left?
How can he have problems handling somthing that's not there anymore?
What im getting at is that kakashi is weak vessel for that power.
You assume that their chakra's adds up in time, but its not how it works.
Kakashi actually has to sync with Obito and process that huge powerful chakra which in turn wears his body out as we freaking seen it to.
Lets recall how naruto in KCM/BM went. It was 8min synergy and naruto was dropping dead afterwards.
Why didnt his regular endurance time and that of kurama add up? Because naruto cant handle burning so much chakra in one go same aplies to kakashi, his body cant handle it well.
Cuz whatever Obito can do Kakashi can also. :|Bar long range teleportation Kamui is useless in this fight.
What if Obito warps away from kakashi's sight into blind spot, then snipes?
Or will kakashi be wasting intangibility to eventually be sniped?