After the daily meeting we have dedicated some time to try to improve the lock acquisition which was unlocking repeatedly around CARM2MC. We have checked the following:

*B2 169MHz phase = -0.3rad

*B1p 56MHz phase = -0.6rad

*B2 56MHz phase = -0.18rad 

Still the transitions were not very stable so we have slightly modified the powers of the two steps CARM2MC and DARM2IR, to compensate for the increase in the intra cavity power. This seemed to help in the stability of the transitions. This mitigated but not solved the problem. Since the sidebands in CITF were low Ilaria adjusted the CH power and the lock acquisition worked well again.

To be rechecked the phases in the central part on Monday.