KMS Soul Master

I currently play KMS as a Soul Master. I was thinking about second job and wondered which skill should get 10 points off.

Soul Blade should definately be maxed, so no
Mastery is important
Booster (?) is questionable
RAge is important
Blade Rush (?) is questionable
Final Attack (?) is also questionable because its max level is 30 not 20

so which skill?

it is because second job gets 120 points while maxing all of these take 130 points.