Bizzle284
If flight grading is in August, don't expect to hear anything until some time later. I think they tend to contact people quite close to their anticipated flight grading dates. I'm not certain about visas for flight graders, sorry, although I think newly accepted cadets do their Aussie visas themselves, and are reimbursed by Cathay afterwards.
CX cadets should be on student visas, not sure about flight graders. One thing you can be sure of though, is that CX will give you instructions on how to go about acquiring your visa, so don't worry about that.