Two words SELECTIVE BREEDING
Of course I put as much effort in finding quality males than I do females, I don't just put two snakes together because they have the genes I want. When I look for a mutation I want the BEST example of that mutation I don't want to just buy an animal because it has the genes I am looking for or because it is cheap I want the best I can afford.
In the end it all pays off in the quality of the animals you are putting out there.