My Big Bang Hero build

As a Hero already past second job, I recommend dropping Ground Smash and maxing Improved Fundamentals with those points. Ground Smash is only useful in second job to level. Once you reach Third Job, 15 Brandish will replace it completely, and Brave Slash replaces that as well.

I am of the personal opinion that Heroes benefit the most from Improved Fundamentals and Slash Blast, since the only 6 mob skills they get are Coma which can only be used when you have orbs up, Shout which is extremely slow, and Monster Magnet and Rush, which can't be spammed as far as I know. Being able to mob 250%x6 after Rushing in theory sounds better than having a 300%x3 skill that you'll never use again

Without trying to hijack the thread, this raises a good point. Would Ground Smash take higher priority over Improved Fundamentals for someone who is 70-119?
The question i'm trying to raise is whether it would be smarter to get 10 IF and 11 GS vs 1 IF and 20 GS?
a) Slash Blast = 250% to 6 || Power Strike = 380% || Ground Smash 246% to 3
b) Slash Blast = 192% to 6 || Power Strike = 272% || Ground Smash 300% to 3

I feel there is something i'm not seeing or drastically overlooking (i'm sick~) but it looks like a difficult choice.