[M0nkeyz]

If a file is too easy to judge for a higher-skilled player, isn't it a possibility to just up the rate? From my personal entirely subjective experience what makes a file hard for a beginner that's playing index usually isn't that different from what makes a file hard for a more advanced player. It's usually just the speed and frequency at which the patterns come up.

Even if you have a level 3 file where arrows come in lets say every 0.5 seconds a [1,2,2,1] pattern is still going to be harder to hit for most players than a [1,2,3,4] pattern.