Tire pressure? Got a track day on Sunday

I'm running Dunlop Q3s on my Ninja 400; for track days, what's recommended? Factory pressure? Lower for more grip? More for quicker steering? via /r/Trackdays https://www.reddit.com/r/Trackdays/comments/gg7ua3/tire_pressure_got_a_track_day_on_sunday/?utm_source=ifttt