It's not worth it anyway. As I recall you have to pay something like 125,000 miles EACH WAY on a TATL on top of a full fare J ticket. All of this while a F class TATL on a superior *A airline will run your between 100k or 135k miles (based on who you book with). Yet another reason I only fly AF short haul, and only enough to segment qualify for Silver and be able to use J check-in/cut lines/board early.