If your test gear provides automated CSO and CTB measurement capabilities, by all means, use them for CSO and CTB
tests. But don't use them for Coherent Disturbance tests. They take too long and don't perform the test properly!
See the tech article "Don't use automated CSO and CTB routines for proofs!"
This is one of the most common errors made when running proofs. The really good news is that, by doing the test properly, the length of service disruptions will actually be reduced.
Links to tech papers:
Don't use automated CSO and CTB routines for proofs!