I could change that to YYZ then, and there are direct flights to LAX from there.

What do you think is better- JFK to SYD via HKG, using CX, or using QF107 into SYD? I have to think CX has a better product, but is it worth going that far out of the way for? If so, I will have to cut a sector somewhere, to keep it at 20 sectors.

Keep the ideas coming! I have learnt a lot form flyertalk, and have passed on many tips to friends and family, who are grateful for many of the mileage/elite earning ideas I've picked up here!