As MC2 Trans mon QPD is temporary removed for fixing, we needed a reference for the MC alignment.
I replaced the 10% pick-off in the MCREFL path to the HR mirror.
Now the MCREFL DC with MC unlock is ~2.2, while it is ~0.29 in lock.
i.e. The visibility is 87%.
This means that the MCWFS were disabled for the moment.