[bluguerrilla]

I don't think that just because someone's good at something negates his or her opinion on the difficulty. You can invent whatever personal metrics for difficulty, some people just suck or excel at certain things, whatever.

The thing is, in addition to being good at the game, it helps to actually think about what's hard and why it's hard.

A good way to rate the easier or average file is by notes per second but even that isn't perfect.

And regardless of how easy or hard you find something, there's always some space for objectivity. The problem is that it's impossible to be anything but subjective when it comes to like... +/-3 on the scale. What's low FMO will be VC for others, etc.