Currently, the ranking criteria states the following:
Uninherited timing points must be the same in every difficulty of a beatmap. Each point must have the same BPM and offset in each difficulty.
In a lot of songs with variable timing, different layers of music are out of sync with each other. Because low difficulties often follow simpler layers than high difficulties, to ensure the best possible timing, the difficulties would need to diverge. The same thing applies with guest difficulties following different layers, as different mappers usually have different interpretations of the song.
I propose making this a guideline, adding a clause that excludes cases involving songs with unsynced layers:
Uninherited timing points should be the same in every difficulty of a beatmap. Each point should have the same BPM and offset in each difficulty. Uninherited timing points can only differ between difficulties in variable timing cases where the instruments are unsynced in order to allow separate difficulties to follow separate instruments.
Uninherited timing points must be the same in every difficulty of a beatmap. Each point must have the same BPM and offset in each difficulty.
In a lot of songs with variable timing, different layers of music are out of sync with each other. Because low difficulties often follow simpler layers than high difficulties, to ensure the best possible timing, the difficulties would need to diverge. The same thing applies with guest difficulties following different layers, as different mappers usually have different interpretations of the song.
I propose making this a guideline, adding a clause that excludes cases involving songs with unsynced layers:
Uninherited timing points should be the same in every difficulty of a beatmap. Each point should have the same BPM and offset in each difficulty. Uninherited timing points can only differ between difficulties in variable timing cases where the instruments are unsynced in order to allow separate difficulties to follow separate instruments.