I always wished that I could use my legacy chocobo as my default one, being the one I could summon to fight with and whatnot. But then it'd probably need a different scene for when you pick it up, considering that the company chocobo was one you had to get a license for, and you are given it by a stable that raised it. Your legacy chocobo has been running around having adventures for 5 years, not sitting around in a city stable waiting to be handed out to whoever happens to buy a license from their GC.

What I really want is to learn more about those adventures the mount guide mentions it had, and how it got that awesome barding.