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. But yeah, we don't know what kind of body Oro had during his first failed attemp to learn SM.

Also, I had some thoughts (not sure if all of them can be true), that overall there are 3 categories of senjutsu compatibility: a) non-compatible people (those who died after receiving CS/turned into stone toad at Mount Myoboku, i.e. most of the regular people) b) compatible people (those who are capable of using CS/have potential to learn senjutsu overall; Naruto is a prime example of the latter, but due to successful CS use Sasuke is potentially able to learn SM as well) c) people having an inborn affinity for senjutsu (i.e. these are the members of the Jugo clan who are naturally able to gather nature energy with no training at all, often even unintentionally).