I say learn a bit more about genitics,and go to alot of snake breeder pages. Ralph davis has alot of info on his page if you look in the right places. heres a link about genitics that help me out when I 1st started out.

http://www.ralphdavisreptiles.com/matrix/

It takes alot of time to learn genes and what does what if bred to this. Hope the link helps.