In a given CGU A, that contains several policies that make use of the soak-seconds annotation, the timestamp to start counting 'soak' time (once the current Policy is Compliant), named clusterGroupUpgrade.Status.Status.CurrentBatchRemediationProgress[clusterName].FirstCompliantAt, is only overwritten once per CGU.

In the shouldSoak() function, the timestamp to evaluate whether the CGU should soak or not should be per Policy, for example, saved together with currentManagedPolicyInfo := clusterGroupUpgrade.Status.ManagedPoliciesForUpgrade[currentPolicyIndex]

    4.16

100%, just using the soak-seconds annotation once    

    1. Create a CGU with several Policies, one of them with soak-annotation in place
    2. Check controller logs: All 'FirstCompliantAt' from the following policies, that never were compliant, instead of showing null (green screenshot attached) show the time of the first soak timestamp (red screenshot attached)
    

    Soak counter is working once; after single use, it becomes useless.

    Soak counter should work at any Policy. 
    No matter how many policies require soak time, for grace period purposes, all of them should include the counter