This guide is "Ultimate", all the other chocobo fact sites say all the same things over and over again. I've had this game for 12 years and it explains just about everything i couldn't get a straight answer to. I tried my own tomfoolery and found you can get special chocobos from a great and a wonderful; and in another experiment finding speed caps for different types of chocobos. In a second generation of breeding two greats one offspring's speed was at 128km, using a provo nut, or whatever its called.