Sauzo definitely answered your question on "how to improve" a line of bp! It can't be helped that you feel like your question wasn't answered the way you want it answered. Genetics is not a exact science when you are talking about offspring production. A lot of possibilities exist in the allelic, chromosomal, non allelic gene pools and much of what is produced in the end is a surprise or unexpected. That is why a lot of breeders cut their clutches early in hopes of producing a particular morph and in some cases are disappointed. Hope this helped. Good luck.![]()