What happens when you press "Slip" button in beat grid map?

Been using the new beat grid feature to keep the songs in sync. It’s hit or miss, but usually works most of the times with consistent tempo songs only. complex tempo songs tend to either drift or go off sync. What does the “slip” button do. I press it, but i don’t really see or hear anything differently happening. Am I missing something?

Hi John, 

the slip button activates the “Slip mode”. This basically allows you to scratch, etc. without disrupting the song’s flow. So, the song will continue playing as if nothing happened.