I measured again the squeezing and anti-squeezing after the engagement of cc noise eater. Also, the measurement is done after the implementation of the s-pol GRMC lock. The measurement result is attached.

We could see that we have 3.30dB of squeezing and 16.47dB of anti-squeezing. This precise number is done by averaging the noise spectrum from 30kHz to 500kHz and then subtracting. In the attached figure, we can see there is still a lot of peaks.