Board Thread:Naruto Discussions/@comment-4366149-20141202054544/@comment-3279282-20141202062220

Ever since I read that sentence in the early leaks, I understood it as "even without the Sharingan, the amount of Yin Release, which creates form out of nothingness, in genjutsu is high" or so. The original sentence below is hard to translate, though.

例えば"写輪眼"ならずとも、[無から形を造る]という意味において、幻術は陰遁の比率が高いと分かるだろう.

The important part is 幻術は陰遁の比率が高い:

が高い means is high

陰遁の比率 means percentage of yin release

幻術は means on the topic of genjutsu or regarding genjutsu (は marks the topic in a sentence)

Putting it together, it's "Regarding Genjutsu, the percentage of Yin Release is high". The sentence doesn't speak about an amount of Genjutsu, I believe. Because it's not 幻術の比率.