On Saturday, the SSFS digital boost was enabled at 19:05 UTC to check the digital noise with the current configuration. The ITF was locked on dark fringe, Metatron state 122. The first plot is comparing the SSFS error signal with the digital boost enabled (blue curve) and without (purple curve). There is some improvement at low frequency. The second figure is comparing the digital noise on the correction signal (red curve) to the correction itself (blue curve) when the boost is enabled. The digital noise is at least three orders of magnitude below the signal.