Board Thread:Wiki Discussions/@comment-1512913-20140521221412/@comment-24808887-20140523121348

Actionmanrandell wrote: actually they are not my own theory its logic they call sasukes eye the Rinnegan but those who awaken the Rinnegan all have access to the sharingan as well that is a fact sasuke did not have Rinnegan until after hagoromo gave him a part of his power so it stands to reason it is a result of that

also it is a fact that kaguya was more powerful its also a fact she had the byakugan and sharingan they never once say she had the Rinnegan so again nothing i stated is theory No on this site don`t interpret logic(apply logic on fiction is a pointless job) only thing you can interpret, if you want argument your poin is a fact(written in manga)

And no, no one ever showed ability switch real rinnegan with sharingan(Madara was ET) and no one ever showed ability to switch eye if eye sharingan-based and you are no uchiha.