It's all good, if it wasn't for you I wouldn't have a clue how to read MR
By 'quality' I'm going to assume you mean 'type', according to everything I've read, type means very little after the 1st generation. If you are able to breed a Wonderful Gold Chocobo, then you 'qualify' for the Gold chocobo breeding circumstances when breeding the Wonderful Gold with a Black (if the Gold was a 'Great' Gold, then you could still get Gold, as when you fail to qualify for the 'special breeding circumstances', you will have 50% of father/mother's colour).
Breeding a Great Gold with a Great Yellow (with 4 races) would result in a Green/Blue. I'm not 100% on all this, this is just from what I've read, but now I know where on the hex editor I can monitor which type a chocobo is, so I'll be able to test in due course
In terms of my experiments, I beleive I may be in for a lot of testing. I'm mapping out every outcome of each RNG's position (all 256 of them), for every variation of chocobo. I'm currently on 1Good, 1Great 0 wins. Now that I know that the chocobo's type varies with Green & Blue, I could be in for a ridiculous amount of testing. I.e.
Great Green M with Great Blue F
Great Green F with Great Blue M
Great Green M with Good Blue F
Great Green F with Good Blue M
Good Green M with Great Blue F
Good Green F with Great Blue M
Good Green M with Good Blue F
Good Green F with Good Blue M
And then I have to throw Wonderful into that equation. Ugh! I'm thinking, is there a program available that would map out the result of each RNG position? It may be less time consuming that way, even if I do have to decipher the hex positions and values. -edit- I've just worked out that there are 18 2nd generation breeding variations, which is 4608 RNG outcomes!!!
i won't know until I get there, but I may get lucky and find that the RNG sequence for stat distribution (as an example) would be the same as the previous generation, and only the colour varies. It's possible..... (fingers crossed)