You want to show me where it says the 5 second interval is taken away when not used by a path?Yea I read it and its all about Kumai. The paths had a 5 second interval the main body attacks are stronger and faster, haha your just sayin Kakashi knows the INS and out of that jutsu like he matters, once tobi starts fightin for real and usin the Rinnegan I don't see kakashi bein a problem it will be more brute strength than strategy
The rinnegan is no issue here. Kakashi has knowledge on every ability, and with the power of the 3 people fighting along side of him, the rinnegan is nothing but a minor nuisance at this point.