SV 1.4 is the SV that 1/4 streams overlap slightly each other, while SV1.6 is that 1/4 streams just separates, but overlap slightly for 1/6, and they are best for players to read the notes.
and, if SV are set in other values, it affect difficulty of notes reading. low SV cause serious overlapping, and high SV greatly reduces reaction time.
and, if SV are set in other values, it affect difficulty of notes reading. low SV cause serious overlapping, and high SV greatly reduces reaction time.