I believe short-haul F is only 25K on TWA.
Also, TWA's capacity controls appear to be much more generous than American's. Two weeks ago, I was able to book a 15K short-haul coach ticket on a nearly-full flight 1 day in advance. We also just booked 2 first-class award seats to the Caribbean on exactly the flights we wanted. My experience on American has been that capacity controls are much tighter, and you have to be at least somewhat flexible to get the PlanAAhead seats.