I too am awaiting my interviews and am not completly clear about IFR in uncontrolled airspace if not receiving an ATC service.
I understand how the quadrantal rules work when cruising, but what about when climbing or descending, surely you are travelling through levels which could conflict with someone coming the other way!
Sorry if I've missed something and this is a dumb question, but it's something that at the moment I don't quite get.