I'm feeling very positive about QF and even the call centre after my experiences, getting and then fine tuning my bookings (which are less than 100 days out).
What I learnt:
Get started and make bookings.
What worked for me (but YMMV) was locking in some key sectors so I knew I could get to the Northern hemisphere and back, then calling back and refining the sectors/changing dates, partly due to availability changing, partly to us refining and extending our itinerary and partly because I made a mistake on version 1.
We ended up making 3 sets of changes but only got 1 change fee(500points/pax=10,000), because the first two were before it had been ticketed - seems like roughly 24 hours between booking and ticketing but may depend on time of day and number of other airlines involved - and when I made the first changes the clock started again. No phone assistance fee because in premium cabins.
Setting up a BA account was simple, any made up address in UK worked. Gave better visibility of Qatar, Iberia, Cathay and others.
The call centre staff were very helpful and generally knowledgeable (WP may have helped with where the call was routed to). The most time spent waiting was for the tax calculations to come through and it seemed fairly consistent across all the calls - ie not dependent on the CSR's skill.
I saw pretty good availability in J from east coast to Japan in June and from HKG to east coast at end of July/August. (I actually ended up with the flight I really wanted to get home: DOH-AKL in J on QR, 2 pax on August 13th so 5 months away).
I didn't stress about getting as close as possible to 35,000miles - tried to focus on the holiday we wanted. Originally we were coming back via HKG and a 16 hour stoppver there on a Ssunday would have been worked to see friends, but generally the thought of treating a less than 24hour transit as a stopover and dealing with immigration/security/transport/etc to say we had been somewhere leaves me cold.
good luck to everyone trying to make it happen, and thanks for the assistance