The only thing you need to take from the walkthroughs on the Internet are that the Sylkis greens are the best ones for raising stats, and getting the gold chocobo on the third disk isn't a bad idea (particularly because your levels will be higher, you'll have more money, and the W-Item materia), and saving the game before you breed them. I'm not so sure if racing them really has an effect on their chances of breeding--I never bothered to test it because racing chocobos was what I did when I waited for the chocobos to be ready to breed again.
I got the gold chocobo from beating Ruby weapon before, and it's really not worth it. You'd probably like to have KOTR for fighting him anyways, and the gold chocobo you get for beating him sucks anyways. He's really slow. So if you breed your own, it will be much faster and better, even though it takes some time.
I got the gold chocobo from beating Ruby weapon before, and it's really not worth it. You'd probably like to have KOTR for fighting him anyways, and the gold chocobo you get for beating him sucks anyways. He's really slow. So if you breed your own, it will be much faster and better, even though it takes some time.