Oh, nice. Seeing the fact that you've constantly encountered poke's w/ the desired shiny spread, I'm pretty sure you'll excel on your future captures. Still, pretty amazing on what you did. Hopefully you can keep up with the good work. I gotta work on that, and make it there...in some way.
As for my 4th gen shiny spread, all I just seem to did, really, is randomly start a new file. I was really, really surprised when I saw this spread. I just literally shat bricks. If you need my shinies w/ those spreads, let me know, and I can probably send it to you via .pkm files or something. Other than Cresselia, I have Articuno, Shaymin, Uxie, Mesprit, and Giratina. (I can do Dialga, Palkia, Azelf, Zapdos, and Moltres if I want to, but that's completely pointless)