This can be manipulated to maximise TP on BA too.
Just booked SOF-LHR-DFW-AUS-LAX-SEA-LHR-SOF next year for £988 - mainly as I wanted the A350 and 787-10 Club Suite on the main routes. That's 560TP.
For a little extra, circa £1150, you can do SOF-LHR-JFK-LAX-JFK-LHR-SOF, netting the 2x140TP from the London-NYC and NYC-LAX components (just on AA A321S, which I'm less keen on), making 720TP.