Backup of Watcher Alerts

Just wanted to double check on this one. If we want to just backup the watcher alerts on a cluster the only way to do this to restore to a new cluster is to backup the .watches index correct? I've added this into our curator box and it appears to backup fine just want to make sure I'll get what I want when it comes time to spin up new boxes and restore it:

 action: snapshot
    description: Backup the .watches index
    options:
      ignore_empty_list: True
      repository: MY_REPO_NAME
      name: 'watches-%Y%m%d%H%M%S'
    filters:
    - filtertype: pattern
      kind: regex
      value: '^\.watches$'

That all looks correct. I would encourage you to restore to a new cluster and confirm it's consistent, but it sounds like you have already verified it.