I am in a similar position, as I fly BA Club World and Club Europe from time to time, but not enough to justify Exec Club. I moved from NZ to the UK three years ago, and took my QFF membership with me, but with QF enforcing 4 QF flights a year to earn status I have missed out. I haven't had any good reason to fly QF that often.

So while earning rate is good, I'd suggest that unless you can find a way to fit in four QF sectors a year, you might think again as you wont get status.