Reminder: you can max all characters stats only in the third playthrough. Also, you have an option to create your own combination if you don't want to follow this section because I give Limit Break to Cecil, but you pretty much can give the Limit Break to anyone you like. If this is the case, you can download Stats Calculator I created; I'll explain how to use it later. 

All stats are cap at 99, you gain stats by leveling up your characters. However, start from level 70 to 99, your stats increase depending on what augments you equipped. For example, if you only equip "Attack" augment to Cecil, he only gains +29 STR from 70-99 level. 

Here are the base stats at level 70 (without equipment):

Since we relay on augments to increase stats from level 70 which means that we have 29 levels left. Remember that we have 5 ability slots, but only 4 that are swappable ("Items" is permanently attached). This give us 29 * 4 = 116 total level points. So, you can use these points in "Level" columns to distribute among augments. Each augment can use up to 29 points. 

Stats Calculator Spreadsheet:

https://docs.google.com/spreadsheets/d/1Fh8aBxDi4x0FaMzfrTATK-efMXt03WuW/edit?usp=share_link&ouid=116771001049603594249&rtpof=true&sd=true

• The only column you need to change is "Level" from 1 to 29 (highlighted in light blue). 
• Pay attention to the remaining augments, total level points (up to 116), and total stats (cap 99).

If you follow this document that I gave Cecil Limit Break, you just simply follow level point distribution below:

Be careful when leveling up Edge, you may not be able to max all stats, pay attention to "Level" column for each augment:

*** I tried my best, unfortunately he really need 1 more level point.

See chart below for more detail (from Stats Calculator)

You can now give all the remaining augments to any characters you like.

It is not enough to max your HP and MP from augments alone. Golden Apple increases HP by 100, Silver Apple increases HP by 50, and Soma Drop raise MP by 10.

NOTE: Farming Silver Apple and Soma Drop requires thousands of Sirens, therefore, you do not have enough gil to buy them. So go back to Gil Farming section on how to grind money.

Here are the best locations to farm these items:

Golden Apple
monster: Gold Dragon
Location with Siren: Luanr Subterrane - B4
Drop rate: ~0.5%

Silver Apple
monster: Lilith
Location with Siren: Mount Ordeals - Crossing or Summit
Drop rate: ~10%

Soma Drop
monster: Dark Sage
Location with Siren: Lair of the Father - B1
Drop rate: ~5%