I really, really do like this proposed change. I understand the developers want to extend the lifetime of the content, but the single most frustrating thing about FF XIV (to me) is the need to run the same fight over and over again and pray I get lucky on my lot. It is also the very thing that keeps me unsubscribed between patches. Doing the 4th fight five, six, seven, or even 8 times a week because my rolls aren't good enough, it makes me want to take a long, long break from the game. Personally, I would take this suggestion further, and give lesser datalogs or something. So that, after X weeks / months, regardless of your luck, you get what you want.