Well, if a seed has a delay of 600 in the year 2010, it will have a delay 599 in the year 2011 (relevant because of New Years :D) and therefore be odd. If you put a GBA Pokémon game in you'd start hitting even delays, but you're better off adjusting your year.
And just make sure you have your ID and SID input into whatever program you're using to find shinies. That's all I can say about that.
And just make sure you have your ID and SID input into whatever program you're using to find shinies. That's all I can say about that.