Board Thread:Naruto Discussions/@comment-30168130-20161009021213/@comment-25122992-20161010082309

Regarding Orochimaru, there's still an assumption I made once that Oro had a secondary goal while branding his followers with Cursed Seals. Since CS is basically senjutsu, the compatibility with it (only 10% though) means that a person is compatible with senjutsu in general, i.e. Oro also could've sought a body suitable for mastering the Sage Mode completely, Sasuke being the primary example.