To avoid confusion for those who look at these guardians remotely,

SQZ_LOCK_L1, SQZ_OPO_L1, SQZ_CLF_L1, and SQZ_LO_L1

Changed to

SQZ_LOCK_LR, SQZ_OPO_LR, SQZ_CLF_LR, and SQZ_LO_LR

"LR" For "Laser Reference" scheme to distinguish from the existing guardians that work on the OPO reference scheme previously used.