Board Thread:Naruto Gaiden/@comment-4704473-20150603131227/@comment-25442883-20150603145902

We actually don't know was Sasuke's Rinnegan stronger than normal one (why would his rinnegan be stronger than Hagoromo's - the original rinnegan), this also may be an upgrade, who knows. Maybe Madara awakened the same one at first then after time evolved into normal.