@Justin > I'm a little confused by your question. Could you please explain it a little more?
The crossfader allows no sound on 1 side, then when you move it a millimetre or so, then there is sound?
It kinda sounds correct from the description you provided.
However, if I am misunderstanding what you mean and there is an issue with the crossfader options, this would be due to the ITCH software and not the DDJ-S1 hardware unfortunately. This is because the DDJ-S1 is only a controller and uses the softwares functions and capabilities.