As number_6 has pointed out, the new F seats are in the aircraft with new Business Class skybeds. I was looking around last week for which flights were being operated into LAX with Skybeds and found it was always QF107, but only about twice a week over the two-week period I checked.

Also note that QF107 arrives earlier into LAX, so if you have connections heading further east it makes better connections than QF11.

Note that seats 4A and 4K have a large shelf area between the seat and the window that covers the bassinet. This provides a large work area and somewhere to put your things (laptop, books, newspaper etc) during the flight. But it does mean you are further from the window. Downside of row 4 is that everyone in front of you has to walk past you to get to the lav.