Thanks for your reply, but I looked at GIG and the flight time between SYD-GIG was terrible 26 hours at best, with some even offering I fly back to LHR on QF and to GIG on BA!
However, I will try working anti-clockwise on the RTW - might work better although I'm always going to have the GIG-SYD/SYD-GIG... Can you think of any other way?