Quote Originally Posted by Vid View Post
Yes, once you obtain the 12 Atma you go turn them in, and he will give you the base weapon back upgraded to item level 100, and shiney new colors, however no stats will be upgraded at all. You then go through the 9 books to upgrade each stat individually until you cap out for that particular stat. Such as getting +2 Int per book until its capped out. So it may take you 3 total books to get all the Int you need to cap out (this is just an example I don't have exact numbers).

It was said by the developers that later on you will be able to upgrade it even further, more then likely to ilvl 110, and be able to customize your stats. However they have not given information as to how we will do this, or exactly how much of each stat you can in fact customize.
This makes perfect sense. Can you follow me around and be my personal FFXIVpedia? :]