About MA I want to share my experience. The last 3th June CO opened my file and request documents that I had already give to The agent. I am sure if the Immigration agent had done their job the same day the CO had open the file had approved the visa.
Today after 27 days I realize that in my import application there are a button "request complete" to assist the department to identify tha application is being ready for assessment and this button is still blue, so the CO can't know the application is ready for assessment
very sad, just waste time with my MA