Six path PS.

[Megax Rocker7]

thats why kishi never had madara use PS

u saw the power up the sage chakra gave kakashi's susanoo imagine the same happening to kakashi's combined with the powers you speak of,,,,,

we already saw kakashi do his strongest attack (kamui) while in PS which resulted in kamui shuriken so that's the best he could do since rinnegan>MS then sasuke's and madara's jutsu's would be better and more destructive while in ps