This one is regarding incap (that how you say it? breaking parts of mob) posted on thread talking about how incap is becoming less used in game.

Quote Originally Posted by Triairy View Post
こんばんは。
Good evening,

Quote Originally Posted by anjely View Post
イフの角を折るとドロップ率が上がると聞いたことがあります。
I heard if you break Ifrit's horn the drop rate increases.
Quote Originally Posted by Amane View Post
ドロップ率の変動は都市伝説じゃないですかねー
I think that was a myth about the drop rate change
ごめんなさい、都市伝説です…
Sorry, that's a myth...

部位損傷の効果は、
For incap effect,
  • 敵を弱体化させる
    Weakens the enemy
  • 敵に特殊技を使えなくさせる
    Stops the enemy from using special actions/attacks
  • 倒した後に、手に入る素材を変える（損傷部位による）
    When defeating the mob the material obtained changes (depends on part you break)

となり、ドロップ率を変動させる効果はありません。
And so it wont affect the drop rate.