Oh and through further experimentation I can say I disagree with those people saying the Silver Chocobo is best, when maxed out with just Potent items he only achieved Strength and Magic skill of 650 and 651 respectively, however the high the strength/magic stat the better the speed/stamina I have achieved with very careful boosting of their stats a White Chocobo with the following stats and abilities:



I chose a white chocobo cause they look the best imo, esp with the Mog adornment on her back.

Here is my race results:


13-1-0-0

This translates as 13 first place wins 1 second place and nothing else, my Chocobo really is that awesome. (Yes, I have a big head, I know).

I was thinking of remaking her as I somehow fudged up and overlooked giving her Blue Streak, though I might sacrifice Dark Horse for Blue, it depends on what is available to be over written.