Since no-one has answered the OP's original question (maximizing the F experience) here are some points (lots more in past threads)....

- chinese tea (really superb though maybe an acquired taste, also quite an expensive tea as it sells in US for over USD 100 per pound)
- caviar service varies considerably by route and season, but HKG-LHR is usually a lot better than LHR-HKG (and it might not be offered at all HKG-SYD-HKG)
- CX flagship wines are their red wines. Well aged Lynch Bages was the CX F trademark for many years, along with Krug. Now these come and go and aren't quite as reliable (I think CX drank the LB stock dry).
- stationary kit used to be quite nice (not sure currently, I keep forgetting to ask for one)
- save room for desert, they are remarkably good at times (except for the midnight departures)
- both port and XO are good quality and free flowing
- use the duvet as a pad (under you) and a blanket as a cover. Much more comfortable and more than warm enough (SQ does this, providing 2 duvets, which is where I got the idea).
- eat whenever you want. Unlike some other airlines, CX really lets you dine upon request, without fuss and with gracious service. Not so important on your routes, but on LAX-HKG I often don't eat after take-off and go to sleep right away, and then have the first meal about 6 hours into the flight. CX manages to do this without disturbing the other pax (who are typically sleeping then).