Zulu Alpha the answer to your question is essentially simple. If the controller should respond with a simple "ROCAS" and nothing more then ask for an expected time for entry. Read the earlier posts and you will see what I am talking about. unfortunately no controller has responded to a number of questions posed around this thread which I find a bit disappointing. We need to learn each others perspective but the GA fraternity do not have the resources available to ATCOS so these forums are of great importance for feed back.