Have any axanthics or carmel albinos been produced by the double het crosses? If so you could use those offspring in a cross to help increase your odds of producing the double recessive! (xx 66% possible Cc x cc 66% possible Xx)=1/9 chance of producing xx cc....a little better......and it would certainly take a good a bit of time to raise up the offspring of each generation.
Way ahead of you.
-adam
Click Below to Fight The National Python & Boa Ban
"The world is a dangerous place, not because of those who do evil, but because of those who look on and do nothing."
- Anna Sewell, author of Black Beauty