I am flying from DFW to EZE on AA and from EZE to Asuncion on TAM, all bought on the same ticket from a travel agent. I will be stopping in Buenos Aires for 2 nights before continuing my trip to Asuncion. Does anyone know if the baggage allowance from EZE to ASU will be based on the piece system or the weight system? I am hoping since my journey started from the U.S. and it is the same ticket, that the piece system applies all the way to ASU, even though I stopped in EZE for 2 nights and changed airlines. Thanks and Semper Fi.