Hercules DJControl Inpulse 300 MK2 User Manual page 20

SLIP: enables or disables Slip mode. In Slip mode, the
deck playhead continues to advance in the background
when you apply an effect or a loop, place a Cue point, or
when you use the jog wheels. When you stop applying
an effect, playback resumes from the point where the
track would be if it had kept playing.
Serato DJ Lite does not feature Slip mode.
Serato DJ Pro features Slip mode.
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