Sasuke is using what he has seen from the previous rinnegan users.
He's not going to use all six path techniques, I can bet that 100%.
Obito got the rinnegan and only use outer path, absorption, and human path. Everyone came up with the assumption that he can't use it.
Madara got the rinnegan and only used outer path, absorption, and chibakui tensei. So people came to the conclusion that Madara didn't have enough time to master all the six path moves.
Yet chapter 606 page 14-15, these guys were able to do it without the eyes let alone with it.
Now it's Sasuke's turn, he won't use all the techniques and people will come to the conclusion that only Nagato can use the rinnegan.