I'd suggest asking for advice in the
American Airlines forum and the
United Airlines forum, respectively.
You're welcome to repost your questions.
Since this forum is MilesBuzz, which is for
<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Discussion of the latest frequent flyer program buzz...</font>
I'm going to close it here.
Best regards,
Gary
aka gleff
MilesBuzz and Delta moderator