[Doug31]

It is a certain percentage of the max score of a song, that's a lower percentage for harder songs, which all can be seen in the first post. I think the percentage way is better than just a flat FC requirement, since even if it's not an FC, you'd have to make up a LOT of PA to get the same score, and I also don't think FCs with less than a 3:1 ratio of perfects to goods like that hellbeat score should be worth much.