In-Game Parser.

[Zeful]

If you don't understand basic rotation - you'll perform awfull regardless of encounter. Because basic rotation is a first step, further you'll need to know how to restart/continue it after breaks and how to tailor it to specific encounter, but basis stays the same.

I know that given this line from a later post:

It's easy though. The rotation shows how a Job's abilities synergize, and how each one affects the other positively to use the whole potential the class provides. It's a concrete example of the value of each move.

So I have to wonder why you're quoting that line specifically as some sort of sweeping rebuttal. Hell one of the next sentences in the post you quote points out the very same thing you're responding to me about.

So, instead of giving you an active read-out, why not encourage proper rotations via Striking Dummies and the Gold Saucer?

Why not just gate endgame upgrade mats to performance? Hit par get a fragment that you can trade in for the whole item after getting enough. Hit above par, get more proportionally to how much you've beaten the par. Attain near optimum get the item outright.