For #7, I intentionally copied this from the official forums so I wouldn't have to go back and find it, but this post is debated somewhere on these forums if you'd like to try and search for it ^^;

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Hello everyone. Kory Zangetsu from Rabanastre SeeD reporting! We just recently posted a Good King Moogle Mog XII strategy on these forums to help people out so I thought it would be a good time to release this information.

As you may know SE released information on stats for auto attack bonus. These stats won't seem very effective until you pass certain thresholds. The magic number to get your AA stats to at 50 is 280. Then if you have the time and patience to go even further you can use forbidden materia to reach the next threshold at 340. When you get both AA stats to these thresholds you will see a significant increase in damage.

After much testing we have determined that this doesn't only apply to AA. For example if you reach 280 INT you will see a damage increase compared to just packing on magic attack.

Defense if a bit different but every 100 defense gives you a damage cut. From testing we did it appears that DEF is superior to VIT for damage reductions.

There are threshold for more than just the few I mentioned but I will let everyone have fun and discover them.

I hope this helps people out.

- Kory Zangetsu of Rabanastre SeeD.

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So what I think he means is that you will see a general increase as your stats go up, but these "thresholds" will see the most significant differences (or maybe even a slight bump at these thresholds?).