for easy and normal diffs, slight SV changes on a per-section basis are acceptable. especially in normal diffs, it's quite common to vary the SV slightly between calm and intense sections. as a rule of thumb, i would suggest staying between 0.9x and 1.1x, although just sticking to 1.0x for the entire map is also a legitimate option.
hard diffs are quite a bit more lenient. variations like [0.8;1.3] are completely acceptable as long as it doesn't affect readability too much.
for insane and above you can do
basically whatever you want.
Sophie Twilight wrote:
Fow difficulties below 3*, always set to 1.0 because new players have hard time adjusting to slider velocity. Constant spacing is important at this difficulty range.
not necessarily. it's more of a difficulty level thing rather than a star rating thing. a <3* map could very well be a hard diff on a low bpm song, in which case larger SV variations are completely fine.
this map, for example, is only 2.7*, yet the SV varies between 0.47x and 1.24x.